20416263

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{13693}}^1$

素因数の和:13774

約数の個数: 16

約数和(自身を含む): 31550976

約数和(自身を除く): 11134713

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 13693, 41079, 95851, 287553, 972203, 2916609, 6805421, 20416263]

約数ペア:

[(1, 20416263), (3, 6805421), (7, 2916609), (21, 972203), (71, 287553), (213, 95851), (497, 41079), (1491, 13693)]