20464257

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{2939}}^1$

素因数の和:3164

約数の個数: 16

約数和(自身を含む): 29917440

約数和(自身を除く): 9453183

約数列:

[1, 3, 11, 33, 211, 633, 2321, 2939, 6963, 8817, 32329, 96987, 620129, 1860387, 6821419, 20464257]

約数ペア:

[(1, 20464257), (3, 6821419), (11, 1860387), (33, 620129), (211, 96987), (633, 32329), (2321, 8817), (2939, 6963)]