21141505

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{617}}^1$

素因数の和:729

約数の個数: 32

約数和(自身を含む): 32037120

約数和(自身を除く): 10895615

約数列:

[1, 5, 7, 11, 35, 55, 77, 89, 385, 445, 617, 623, 979, 3085, 3115, 4319, 4895, 6787, 6853, 21595, 33935, 34265, 47509, 54913, 237545, 274565, 384391, 604043, 1921955, 3020215, 4228301, 21141505]

約数ペア:

[(1, 21141505), (5, 4228301), (7, 3020215), (11, 1921955), (35, 604043), (55, 384391), (77, 274565), (89, 237545), (385, 54913), (445, 47509), (617, 34265), (623, 33935), (979, 21595), (3085, 6853), (3115, 6787), (4319, 4895)]