20856615

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{106957}}^1$

素因数の和:106978

約数の個数: 16

約数和(自身を含む): 35937888

約数和(自身を除く): 15081273

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 106957, 320871, 534785, 1390441, 1604355, 4171323, 6952205, 20856615]

約数ペア:

[(1, 20856615), (3, 6952205), (5, 4171323), (13, 1604355), (15, 1390441), (39, 534785), (65, 320871), (195, 106957)]