211984825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{652261}}^1$

素因数の和:652284

約数の個数: 12

約数和(自身を含む): 283081708

約数和(自身を除く): 71096883

約数列:

[1, 5, 13, 25, 65, 325, 652261, 3261305, 8479393, 16306525, 42396965, 211984825]

約数ペア:

[(1, 211984825), (5, 42396965), (13, 16306525), (25, 8479393), (65, 3261305), (325, 652261)]