21607495

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^3\times {\mathrm{281}}^1$

素因数の和:332

約数の個数: 32

約数和(自身を含む): 32215680

約数和(自身を除く): 10608185

約数列:

[1, 5, 7, 13, 35, 65, 91, 169, 281, 455, 845, 1183, 1405, 1967, 2197, 3653, 5915, 9835, 10985, 15379, 18265, 25571, 47489, 76895, 127855, 237445, 332423, 617357, 1662115, 3086785, 4321499, 21607495]

約数ペア:

[(1, 21607495), (5, 4321499), (7, 3086785), (13, 1662115), (35, 617357), (65, 332423), (91, 237445), (169, 127855), (281, 76895), (455, 47489), (845, 25571), (1183, 18265), (1405, 15379), (1967, 10985), (2197, 9835), (3653, 5915)]