21000724759

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{2251}}^1\times {\mathrm{32507}}^1$

素因数の和:34806

約数の個数: 16

約数和(自身を含む): 24597893376

約数和(自身を除く): 3597168617

約数列:

[1, 7, 41, 287, 2251, 15757, 32507, 92291, 227549, 646037, 1332787, 9329509, 73173257, 512212799, 3000103537, 21000724759]

約数ペア:

[(1, 21000724759), (7, 3000103537), (41, 512212799), (287, 73173257), (2251, 9329509), (15757, 1332787), (32507, 646037), (92291, 227549)]