21784924

素因数分解:

$2^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{13187}}^1$

素因数の和:13257

約数の個数: 24

約数和(自身を含む): 44311680

約数和(自身を除く): 22526756

約数列:

[1, 2, 4, 7, 14, 28, 59, 118, 236, 413, 826, 1652, 13187, 26374, 52748, 92309, 184618, 369236, 778033, 1556066, 3112132, 5446231, 10892462, 21784924]

約数ペア:

[(1, 21784924), (2, 10892462), (4, 5446231), (7, 3112132), (14, 1556066), (28, 778033), (59, 369236), (118, 184618), (236, 92309), (413, 52748), (826, 26374), (1652, 13187)]