20525895

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2699}}^1$

素因数の和:2736

約数の個数: 36

約数和(自身を含む): 38539800

約数和(自身を除く): 18013905

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 169, 195, 507, 585, 845, 1521, 2535, 2699, 7605, 8097, 13495, 24291, 35087, 40485, 105261, 121455, 175435, 315783, 456131, 526305, 1368393, 1578915, 2280655, 4105179, 6841965, 20525895]

約数ペア:

[(1, 20525895), (3, 6841965), (5, 4105179), (9, 2280655), (13, 1578915), (15, 1368393), (39, 526305), (45, 456131), (65, 315783), (117, 175435), (169, 121455), (195, 105261), (507, 40485), (585, 35087), (845, 24291), (1521, 13495), (2535, 8097), (2699, 7605)]