20974581

素因数分解:

$3^2\times {\mathrm{149}}^1\times {\mathrm{15641}}^1$

素因数の和:15796

約数の個数: 12

約数和(自身を含む): 30501900

約数和(自身を除く): 9527319

約数列:

[1, 3, 9, 149, 447, 1341, 15641, 46923, 140769, 2330509, 6991527, 20974581]

約数ペア:

[(1, 20974581), (3, 6991527), (9, 2330509), (149, 140769), (447, 46923), (1341, 15641)]