21874515

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{8629}}^1$

素因数の和:8663

約数の個数: 24

約数和(自身を含む): 37902960

約数和(自身を除く): 16028445

約数列:

[1, 3, 5, 13, 15, 39, 65, 169, 195, 507, 845, 2535, 8629, 25887, 43145, 112177, 129435, 336531, 560885, 1458301, 1682655, 4374903, 7291505, 21874515]

約数ペア:

[(1, 21874515), (3, 7291505), (5, 4374903), (13, 1682655), (15, 1458301), (39, 560885), (65, 336531), (169, 129435), (195, 112177), (507, 43145), (845, 25887), (2535, 8629)]