20904052

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{2221}}^1$

素因数の和:2419

約数の個数: 24

約数和(自身を含む): 39631592

約数和(自身を除く): 18727540

約数列:

[1, 2, 4, 13, 26, 52, 181, 362, 724, 2221, 2353, 4442, 4706, 8884, 9412, 28873, 57746, 115492, 402001, 804002, 1608004, 5226013, 10452026, 20904052]

約数ペア:

[(1, 20904052), (2, 10452026), (4, 5226013), (13, 1608004), (26, 804002), (52, 402001), (181, 115492), (362, 57746), (724, 28873), (2221, 9412), (2353, 8884), (4442, 4706)]