21210392

素因数分解:

$2^3\times 7^1\times {\mathrm{378757}}^1$

素因数の和:378770

約数の個数: 16

約数和(自身を含む): 45450960

約数和(自身を除く): 24240568

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 378757, 757514, 1515028, 2651299, 3030056, 5302598, 10605196, 21210392]

約数ペア:

[(1, 21210392), (2, 10605196), (4, 5302598), (7, 3030056), (8, 2651299), (14, 1515028), (28, 757514), (56, 378757)]