20785503

素因数分解:

$3^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1\times {\mathrm{491}}^1$

素因数の和:734

約数の個数: 16

約数和(自身を含む): 28244736

約数和(自身を除く): 7459233

約数列:

[1, 3, 103, 137, 309, 411, 491, 1473, 14111, 42333, 50573, 67267, 151719, 201801, 6928501, 20785503]

約数ペア:

[(1, 20785503), (3, 6928501), (103, 201801), (137, 151719), (309, 67267), (411, 50573), (491, 42333), (1473, 14111)]