18713877

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{5273}}^1$

素因数の和:5309

約数の個数: 24

約数和(自身を含む): 30884544

約数和(自身を除く): 12170667

約数列:

[1, 3, 7, 13, 21, 39, 91, 169, 273, 507, 1183, 3549, 5273, 15819, 36911, 68549, 110733, 205647, 479843, 891137, 1439529, 2673411, 6237959, 18713877]

約数ペア:

[(1, 18713877), (3, 6237959), (7, 2673411), (13, 1439529), (21, 891137), (39, 479843), (91, 205647), (169, 110733), (273, 68549), (507, 36911), (1183, 15819), (3549, 5273)]