21765510

素因数分解:

$2^1\times 3^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1$

素因数の和:101

約数の個数: 144

約数和(自身を含む): 64746864

約数和(自身を除く): 42981354

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 53, 54, 65, 78, 81, 90, 106, 117, 130, 135, 159, 162, 169, 195, 234, 243, 265, 270, 318, 338, 351, 390, 405, 477, 486, 507, 530, 585, 689, 702, 795, 810, 845, 954, 1014, 1053, 1170, 1215, 1378, 1431, 1521, 1590, 1690, 1755, 2067, 2106, 2385, 2430, 2535, 2862, 3042, 3159, 3445, 3510, 4134, 4293, 4563, 4770, 5070, 5265, 6201, 6318, 6890, 7155, 7605, 8586, 8957, 9126, 10335, 10530, 12402, 12879, 13689, 14310, 15210, 15795, 17914, 18603, 20670, 21465, 22815, 25758, 26871, 27378, 31005, 31590, 37206, 41067, 42930, 44785, 45630, 53742, 55809, 62010, 64395, 68445, 80613, 82134, 89570, 93015, 111618, 128790, 134355, 136890, 161226, 167427, 186030, 205335, 241839, 268710, 279045, 334854, 403065, 410670, 483678, 558090, 725517, 806130, 837135, 1209195, 1451034, 1674270, 2176551, 2418390, 3627585, 4353102, 7255170, 10882755, 21765510]

約数ペア:

[(1, 21765510), (2, 10882755), (3, 7255170), (5, 4353102), (6, 3627585), (9, 2418390), (10, 2176551), (13, 1674270), (15, 1451034), (18, 1209195), (26, 837135), (27, 806130), (30, 725517), (39, 558090), (45, 483678), (53, 410670), (54, 403065), (65, 334854), (78, 279045), (81, 268710), (90, 241839), (106, 205335), (117, 186030), (130, 167427), (135, 161226), (159, 136890), (162, 134355), (169, 128790), (195, 111618), (234, 93015), (243, 89570), (265, 82134), (270, 80613), (318, 68445), (338, 64395), (351, 62010), (390, 55809), (405, 53742), (477, 45630), (486, 44785), (507, 42930), (530, 41067), (585, 37206), (689, 31590), (702, 31005), (795, 27378), (810, 26871), (845, 25758), (954, 22815), (1014, 21465), (1053, 20670), (1170, 18603), (1215, 17914), (1378, 15795), (1431, 15210), (1521, 14310), (1590, 13689), (1690, 12879), (1755, 12402), (2067, 10530), (2106, 10335), (2385, 9126), (2430, 8957), (2535, 8586), (2862, 7605), (3042, 7155), (3159, 6890), (3445, 6318), (3510, 6201), (4134, 5265), (4293, 5070), (4563, 4770)]