21462595

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{521}}^1$

素因数の和:651

約数の個数: 32

約数和(自身を含む): 32472576

約数和(自身を除く): 11009981

約数列:

[1, 5, 7, 11, 35, 55, 77, 107, 385, 521, 535, 749, 1177, 2605, 3647, 3745, 5731, 5885, 8239, 18235, 28655, 40117, 41195, 55747, 200585, 278735, 390229, 613217, 1951145, 3066085, 4292519, 21462595]

約数ペア:

[(1, 21462595), (5, 4292519), (7, 3066085), (11, 1951145), (35, 613217), (55, 390229), (77, 278735), (107, 200585), (385, 55747), (521, 41195), (535, 40117), (749, 28655), (1177, 18235), (2605, 8239), (3647, 5885), (3745, 5731)]