12647901

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31699}}^1$

素因数の和:31728

約数の個数: 16

約数和(自身を含む): 20288000

約数和(自身を除く): 7640099

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 31699, 95097, 221893, 602281, 665679, 1806843, 4215967, 12647901]

約数ペア:

[(1, 12647901), (3, 4215967), (7, 1806843), (19, 665679), (21, 602281), (57, 221893), (133, 95097), (399, 31699)]