20480257

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{2917}}^1$

素因数の和:3000

約数の個数: 16

約数和(自身を含む): 25211520

約数和(自身を除く): 4731263

約数列:

[1, 7, 17, 59, 119, 413, 1003, 2917, 7021, 20419, 49589, 172103, 347123, 1204721, 2925751, 20480257]

約数ペア:

[(1, 20480257), (7, 2925751), (17, 1204721), (59, 347123), (119, 172103), (413, 49589), (1003, 20419), (2917, 7021)]