21745620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9293}}^1$

素因数の和:9321

約数の個数: 72

約数和(自身を含む): 71043336

約数和(自身を除く): 49297716

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, 9293, 18586, 27879, 37172, 46465, 55758, 83637, 92930, 111516, 120809, 139395, 167274, 185860, 241618, 278790, 334548, 362427, 418185, 483236, 557580, 604045, 724854, 836370, 1087281, 1208090, 1449708, 1672740, 1812135, 2174562, 2416180, 3624270, 4349124, 5436405, 7248540, 10872810, 21745620]

約数ペア:

[(1, 21745620), (2, 10872810), (3, 7248540), (4, 5436405), (5, 4349124), (6, 3624270), (9, 2416180), (10, 2174562), (12, 1812135), (13, 1672740), (15, 1449708), (18, 1208090), (20, 1087281), (26, 836370), (30, 724854), (36, 604045), (39, 557580), (45, 483236), (52, 418185), (60, 362427), (65, 334548), (78, 278790), (90, 241618), (117, 185860), (130, 167274), (156, 139395), (180, 120809), (195, 111516), (234, 92930), (260, 83637), (390, 55758), (468, 46465), (585, 37172), (780, 27879), (1170, 18586), (2340, 9293)]