21287008

素因数分解:

$2^5\times {\mathrm{107}}^1\times {\mathrm{6217}}^1$

素因数の和:6334

約数の個数: 24

約数和(自身を含む): 42307272

約数和(自身を除く): 21020264

約数列:

[1, 2, 4, 8, 16, 32, 107, 214, 428, 856, 1712, 3424, 6217, 12434, 24868, 49736, 99472, 198944, 665219, 1330438, 2660876, 5321752, 10643504, 21287008]

約数ペア:

[(1, 21287008), (2, 10643504), (4, 5321752), (8, 2660876), (16, 1330438), (32, 665219), (107, 198944), (214, 99472), (428, 49736), (856, 24868), (1712, 12434), (3424, 6217)]