28431221

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{44633}}^1$

素因数の和:44660

約数の個数: 12

約数和(自身を含む): 35617932

約数和(自身を除く): 7186711

約数列:

[1, 7, 13, 49, 91, 637, 44633, 312431, 580229, 2187017, 4061603, 28431221]

約数ペア:

[(1, 28431221), (7, 4061603), (13, 2187017), (49, 580229), (91, 312431), (637, 44633)]