20321325

素因数分解:

$3^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{2441}}^1$

素因数の和:2494

約数の個数: 36

約数和(自身を含む): 37396788

約数和(自身を除く): 17075463

約数列:

[1, 3, 5, 9, 15, 25, 37, 45, 75, 111, 185, 225, 333, 555, 925, 1665, 2441, 2775, 7323, 8325, 12205, 21969, 36615, 61025, 90317, 109845, 183075, 270951, 451585, 549225, 812853, 1354755, 2257925, 4064265, 6773775, 20321325]

約数ペア:

[(1, 20321325), (3, 6773775), (5, 4064265), (9, 2257925), (15, 1354755), (25, 812853), (37, 549225), (45, 451585), (75, 270951), (111, 183075), (185, 109845), (225, 90317), (333, 61025), (555, 36615), (925, 21969), (1665, 12205), (2441, 8325), (2775, 7323)]