20895091

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{3313}}^1$

素因数の和:3390

約数の個数: 16

約数和(自身を含む): 25769664

約数和(自身を除く): 4874573

約数列:

[1, 7, 17, 53, 119, 371, 901, 3313, 6307, 23191, 56321, 175589, 394247, 1229123, 2985013, 20895091]

約数ペア:

[(1, 20895091), (7, 2985013), (17, 1229123), (53, 394247), (119, 175589), (371, 56321), (901, 23191), (3313, 6307)]