18961475

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1423}}^1$

素因数の和:1487

約数の個数: 24

約数和(自身を含む): 25956672

約数和(自身を除く): 6995197

約数列:

[1, 5, 13, 25, 41, 65, 205, 325, 533, 1025, 1423, 2665, 7115, 13325, 18499, 35575, 58343, 92495, 291715, 462475, 758459, 1458575, 3792295, 18961475]

約数ペア:

[(1, 18961475), (5, 3792295), (13, 1458575), (25, 758459), (41, 462475), (65, 291715), (205, 92495), (325, 58343), (533, 35575), (1025, 18499), (1423, 13325), (2665, 7115)]