21750303

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{1213}}^1$

素因数の和:1398

約数の個数: 16

約数和(自身を含む): 29912960

約数和(自身を除く): 8162657

約数列:

[1, 3, 43, 129, 139, 417, 1213, 3639, 5977, 17931, 52159, 156477, 168607, 505821, 7250101, 21750303]

約数ペア:

[(1, 21750303), (3, 7250101), (43, 505821), (129, 168607), (139, 156477), (417, 52159), (1213, 17931), (3639, 5977)]