28521285

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{11251}}^1$

素因数の和:11285

約数の個数: 24

約数和(自身を含む): 49418784

約数和(自身を除く): 20897499

約数列:

[1, 3, 5, 13, 15, 39, 65, 169, 195, 507, 845, 2535, 11251, 33753, 56255, 146263, 168765, 438789, 731315, 1901419, 2193945, 5704257, 9507095, 28521285]

約数ペア:

[(1, 28521285), (3, 9507095), (5, 5704257), (13, 2193945), (15, 1901419), (39, 731315), (65, 438789), (169, 168765), (195, 146263), (507, 56255), (845, 33753), (2535, 11251)]