20662984

素因数分解:

$2^3\times {\mathrm{101}}^1\times {\mathrm{107}}^1\times {\mathrm{239}}^1$

素因数の和:453

約数の個数: 32

約数和(自身を含む): 39657600

約数和(自身を除く): 18994616

約数列:

[1, 2, 4, 8, 101, 107, 202, 214, 239, 404, 428, 478, 808, 856, 956, 1912, 10807, 21614, 24139, 25573, 43228, 48278, 51146, 86456, 96556, 102292, 193112, 204584, 2582873, 5165746, 10331492, 20662984]

約数ペア:

[(1, 20662984), (2, 10331492), (4, 5165746), (8, 2582873), (101, 204584), (107, 193112), (202, 102292), (214, 96556), (239, 86456), (404, 51146), (428, 48278), (478, 43228), (808, 25573), (856, 24139), (956, 21614), (1912, 10807)]