21315060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9109}}^1$

素因数の和:9137

約数の個数: 72

約数和(自身を含む): 69636840

約数和(自身を除く): 48321780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 9109, 18218, 27327, 36436, 45545, 54654, 81981, 91090, 109308, 118417, 136635, 163962, 182180, 236834, 273270, 327924, 355251, 409905, 473668, 546540, 592085, 710502, 819810, 1065753, 1184170, 1421004, 1639620, 1776255, 2131506, 2368340, 3552510, 4263012, 5328765, 7105020, 10657530, 21315060]

約数ペア:

[(1, 21315060), (2, 10657530), (3, 7105020), (4, 5328765), (5, 4263012), (6, 3552510), (9, 2368340), (10, 2131506), (12, 1776255), (13, 1639620), (15, 1421004), (18, 1184170), (20, 1065753), (26, 819810), (30, 710502), (36, 592085), (39, 546540), (45, 473668), (52, 409905), (60, 355251), (65, 327924), (78, 273270), (90, 236834), (117, 182180), (130, 163962), (156, 136635), (180, 118417), (195, 109308), (234, 91090), (260, 81981), (390, 54654), (468, 45545), (585, 36436), (780, 27327), (1170, 18218), (2340, 9109)]