21173724

素因数分解:

$2^2\times 3^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{457}}^1$

素因数の和:497

約数の個数: 120

約数和(自身を含む): 65171568

約数和(自身を除く): 43997844

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 26, 27, 33, 36, 39, 44, 52, 54, 66, 78, 81, 99, 108, 117, 132, 143, 156, 162, 198, 234, 286, 297, 324, 351, 396, 429, 457, 468, 572, 594, 702, 858, 891, 914, 1053, 1188, 1287, 1371, 1404, 1716, 1782, 1828, 2106, 2574, 2742, 3564, 3861, 4113, 4212, 5027, 5148, 5484, 5941, 7722, 8226, 10054, 11583, 11882, 12339, 15081, 15444, 16452, 17823, 20108, 23166, 23764, 24678, 30162, 35646, 37017, 45243, 46332, 49356, 53469, 60324, 65351, 71292, 74034, 90486, 106938, 130702, 135729, 148068, 160407, 180972, 196053, 213876, 261404, 271458, 320814, 392106, 407187, 481221, 542916, 588159, 641628, 784212, 814374, 962442, 1176318, 1628748, 1764477, 1924884, 2352636, 3528954, 5293431, 7057908, 10586862, 21173724]

約数ペア:

[(1, 21173724), (2, 10586862), (3, 7057908), (4, 5293431), (6, 3528954), (9, 2352636), (11, 1924884), (12, 1764477), (13, 1628748), (18, 1176318), (22, 962442), (26, 814374), (27, 784212), (33, 641628), (36, 588159), (39, 542916), (44, 481221), (52, 407187), (54, 392106), (66, 320814), (78, 271458), (81, 261404), (99, 213876), (108, 196053), (117, 180972), (132, 160407), (143, 148068), (156, 135729), (162, 130702), (198, 106938), (234, 90486), (286, 74034), (297, 71292), (324, 65351), (351, 60324), (396, 53469), (429, 49356), (457, 46332), (468, 45243), (572, 37017), (594, 35646), (702, 30162), (858, 24678), (891, 23764), (914, 23166), (1053, 20108), (1188, 17823), (1287, 16452), (1371, 15444), (1404, 15081), (1716, 12339), (1782, 11882), (1828, 11583), (2106, 10054), (2574, 8226), (2742, 7722), (3564, 5941), (3861, 5484), (4113, 5148), (4212, 5027)]