21310257780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{51407}}^1$

素因数の和:51483

約数の個数: 216

約数和(自身を含む): 76796149248

約数和(自身を除く): 55485891468

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 47, 49, 60, 63, 70, 84, 90, 94, 98, 105, 126, 140, 141, 147, 180, 188, 196, 210, 235, 245, 252, 282, 294, 315, 329, 420, 423, 441, 470, 490, 564, 588, 630, 658, 705, 735, 846, 882, 940, 980, 987, 1260, 1316, 1410, 1470, 1645, 1692, 1764, 1974, 2115, 2205, 2303, 2820, 2940, 2961, 3290, 3948, 4230, 4410, 4606, 4935, 5922, 6580, 6909, 8460, 8820, 9212, 9870, 11515, 11844, 13818, 14805, 19740, 20727, 23030, 27636, 29610, 34545, 41454, 46060, 51407, 59220, 69090, 82908, 102814, 103635, 138180, 154221, 205628, 207270, 257035, 308442, 359849, 414540, 462663, 514070, 616884, 719698, 771105, 925326, 1028140, 1079547, 1439396, 1542210, 1799245, 1850652, 2159094, 2313315, 2416129, 2518943, 3084420, 3238641, 3598490, 4318188, 4626630, 4832258, 5037886, 5397735, 6477282, 7196980, 7248387, 7556829, 9253260, 9664516, 10075772, 10795470, 12080645, 12594715, 12954564, 14496774, 15113658, 16193205, 16912903, 21590940, 21745161, 22670487, 24161290, 25189430, 28993548, 30227316, 32386410, 33825806, 36241935, 37784145, 43490322, 45340974, 48322580, 50378860, 50738709, 64772820, 67651612, 72483870, 75568290, 84564515, 86980644, 90681948, 101477418, 108725805, 113352435, 118390321, 144967740, 151136580, 152216127, 169129030, 202954836, 217451610, 226704870, 236780642, 253693545, 304432254, 338258060, 355170963, 434903220, 453409740, 473561284, 507387090, 591951605, 608864508, 710341926, 761080635, 1014774180, 1065512889, 1183903210, 1420683852, 1522161270, 1775854815, 2131025778, 2367806420, 3044322540, 3551709630, 4262051556, 5327564445, 7103419260, 10655128890, 21310257780]

約数ペア:

[(1, 21310257780), (2, 10655128890), (3, 7103419260), (4, 5327564445), (5, 4262051556), (6, 3551709630), (7, 3044322540), (9, 2367806420), (10, 2131025778), (12, 1775854815), (14, 1522161270), (15, 1420683852), (18, 1183903210), (20, 1065512889), (21, 1014774180), (28, 761080635), (30, 710341926), (35, 608864508), (36, 591951605), (42, 507387090), (45, 473561284), (47, 453409740), (49, 434903220), (60, 355170963), (63, 338258060), (70, 304432254), (84, 253693545), (90, 236780642), (94, 226704870), (98, 217451610), (105, 202954836), (126, 169129030), (140, 152216127), (141, 151136580), (147, 144967740), (180, 118390321), (188, 113352435), (196, 108725805), (210, 101477418), (235, 90681948), (245, 86980644), (252, 84564515), (282, 75568290), (294, 72483870), (315, 67651612), (329, 64772820), (420, 50738709), (423, 50378860), (441, 48322580), (470, 45340974), (490, 43490322), (564, 37784145), (588, 36241935), (630, 33825806), (658, 32386410), (705, 30227316), (735, 28993548), (846, 25189430), (882, 24161290), (940, 22670487), (980, 21745161), (987, 21590940), (1260, 16912903), (1316, 16193205), (1410, 15113658), (1470, 14496774), (1645, 12954564), (1692, 12594715), (1764, 12080645), (1974, 10795470), (2115, 10075772), (2205, 9664516), (2303, 9253260), (2820, 7556829), (2940, 7248387), (2961, 7196980), (3290, 6477282), (3948, 5397735), (4230, 5037886), (4410, 4832258), (4606, 4626630), (4935, 4318188), (5922, 3598490), (6580, 3238641), (6909, 3084420), (8460, 2518943), (8820, 2416129), (9212, 2313315), (9870, 2159094), (11515, 1850652), (11844, 1799245), (13818, 1542210), (14805, 1439396), (19740, 1079547), (20727, 1028140), (23030, 925326), (27636, 771105), (29610, 719698), (34545, 616884), (41454, 514070), (46060, 462663), (51407, 414540), (59220, 359849), (69090, 308442), (82908, 257035), (102814, 207270), (103635, 205628), (138180, 154221)]