12571209

素因数分解:

$3^2\times 7^1\times {\mathrm{383}}^1\times {\mathrm{521}}^1$

素因数の和:917

約数の個数: 24

約数和(自身を含む): 20846592

約数和(自身を除く): 8275383

約数列:

[1, 3, 7, 9, 21, 63, 383, 521, 1149, 1563, 2681, 3447, 3647, 4689, 8043, 10941, 24129, 32823, 199543, 598629, 1396801, 1795887, 4190403, 12571209]

約数ペア:

[(1, 12571209), (3, 4190403), (7, 1795887), (9, 1396801), (21, 598629), (63, 199543), (383, 32823), (521, 24129), (1149, 10941), (1563, 8043), (2681, 4689), (3447, 3647)]