20571855

素因数分解:

$3^1\times 5^1\times {\mathrm{457}}^1\times {\mathrm{3001}}^1$

素因数の和:3466

約数の個数: 16

約数和(自身を含む): 32997984

約数和(自身を除く): 12426129

約数列:

[1, 3, 5, 15, 457, 1371, 2285, 3001, 6855, 9003, 15005, 45015, 1371457, 4114371, 6857285, 20571855]

約数ペア:

[(1, 20571855), (3, 6857285), (5, 4114371), (15, 1371457), (457, 45015), (1371, 15005), (2285, 9003), (3001, 6855)]