20156619

素因数分解:

$3^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{4549}}^1$

素因数の和:4770

約数の個数: 16

約数和(自身を含む): 30867200

約数和(自身を除く): 10710581

約数列:

[1, 3, 7, 21, 211, 633, 1477, 4431, 4549, 13647, 31843, 95529, 959839, 2879517, 6718873, 20156619]

約数ペア:

[(1, 20156619), (3, 6718873), (7, 2879517), (21, 959839), (211, 95529), (633, 31843), (1477, 13647), (4431, 4549)]