20919524

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{977}}^1$

素因数の和:1135

約数の個数: 24

約数和(自身を含む): 37707768

約数和(自身を除く): 16788244

約数列:

[1, 2, 4, 53, 101, 106, 202, 212, 404, 977, 1954, 3908, 5353, 10706, 21412, 51781, 98677, 103562, 197354, 207124, 394708, 5229881, 10459762, 20919524]

約数ペア:

[(1, 20919524), (2, 10459762), (4, 5229881), (53, 394708), (101, 207124), (106, 197354), (202, 103562), (212, 98677), (404, 51781), (977, 21412), (1954, 10706), (3908, 5353)]