21555652

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{1567}}^1$

素因数の和:1771

約数の個数: 24

約数和(自身を含む): 39952640

約数和(自身を除く): 18396988

約数列:

[1, 2, 4, 19, 38, 76, 181, 362, 724, 1567, 3134, 3439, 6268, 6878, 13756, 29773, 59546, 119092, 283627, 567254, 1134508, 5388913, 10777826, 21555652]

約数ペア:

[(1, 21555652), (2, 10777826), (4, 5388913), (19, 1134508), (38, 567254), (76, 283627), (181, 119092), (362, 59546), (724, 29773), (1567, 13756), (3134, 6878), (3439, 6268)]