20996968

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{55843}}^1$

素因数の和:55896

約数の個数: 16

約数和(自身を含む): 40207680

約数和(自身を除く): 19210712

約数列:

[1, 2, 4, 8, 47, 94, 188, 376, 55843, 111686, 223372, 446744, 2624621, 5249242, 10498484, 20996968]

約数ペア:

[(1, 20996968), (2, 10498484), (4, 5249242), (8, 2624621), (47, 446744), (94, 223372), (188, 111686), (376, 55843)]