21104715

素因数分解:

$3^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{4583}}^1$

素因数の和:4898

約数の個数: 16

約数和(自身を含む): 33884928

約数和(自身を除く): 12780213

約数列:

[1, 3, 5, 15, 307, 921, 1535, 4583, 4605, 13749, 22915, 68745, 1406981, 4220943, 7034905, 21104715]

約数ペア:

[(1, 21104715), (3, 7034905), (5, 4220943), (15, 1406981), (307, 68745), (921, 22915), (1535, 13749), (4583, 4605)]