20993777

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{797}}^1$

素因数の和:928

約数の個数: 16

約数和(自身を含む): 24820992

約数和(自身を除く): 3827215

約数列:

[1, 7, 53, 71, 371, 497, 797, 3763, 5579, 26341, 42241, 56587, 295687, 396109, 2999111, 20993777]

約数ペア:

[(1, 20993777), (7, 2999111), (53, 396109), (71, 295687), (371, 56587), (497, 42241), (797, 26341), (3763, 5579)]