21310740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:302

約数の個数: 144

約数和(自身を含む): 72334080

約数和(自身を除く): 51023340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 47, 55, 60, 66, 90, 94, 99, 110, 132, 141, 165, 180, 188, 198, 220, 229, 235, 282, 330, 396, 423, 458, 470, 495, 517, 564, 660, 687, 705, 846, 916, 940, 990, 1034, 1145, 1374, 1410, 1551, 1692, 1980, 2061, 2068, 2115, 2290, 2519, 2585, 2748, 2820, 3102, 3435, 4122, 4230, 4580, 4653, 5038, 5170, 6204, 6870, 7557, 7755, 8244, 8460, 9306, 10076, 10305, 10340, 10763, 12595, 13740, 15114, 15510, 18612, 20610, 21526, 22671, 23265, 25190, 30228, 31020, 32289, 37785, 41220, 43052, 45342, 46530, 50380, 53815, 64578, 75570, 90684, 93060, 96867, 107630, 113355, 118393, 129156, 151140, 161445, 193734, 215260, 226710, 236786, 322890, 355179, 387468, 453420, 473572, 484335, 591965, 645780, 710358, 968670, 1065537, 1183930, 1420716, 1775895, 1937340, 2131074, 2367860, 3551790, 4262148, 5327685, 7103580, 10655370, 21310740]

約数ペア:

[(1, 21310740), (2, 10655370), (3, 7103580), (4, 5327685), (5, 4262148), (6, 3551790), (9, 2367860), (10, 2131074), (11, 1937340), (12, 1775895), (15, 1420716), (18, 1183930), (20, 1065537), (22, 968670), (30, 710358), (33, 645780), (36, 591965), (44, 484335), (45, 473572), (47, 453420), (55, 387468), (60, 355179), (66, 322890), (90, 236786), (94, 226710), (99, 215260), (110, 193734), (132, 161445), (141, 151140), (165, 129156), (180, 118393), (188, 113355), (198, 107630), (220, 96867), (229, 93060), (235, 90684), (282, 75570), (330, 64578), (396, 53815), (423, 50380), (458, 46530), (470, 45342), (495, 43052), (517, 41220), (564, 37785), (660, 32289), (687, 31020), (705, 30228), (846, 25190), (916, 23265), (940, 22671), (990, 21526), (1034, 20610), (1145, 18612), (1374, 15510), (1410, 15114), (1551, 13740), (1692, 12595), (1980, 10763), (2061, 10340), (2068, 10305), (2115, 10076), (2290, 9306), (2519, 8460), (2585, 8244), (2748, 7755), (2820, 7557), (3102, 6870), (3435, 6204), (4122, 5170), (4230, 5038), (4580, 4653)]