21225508

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{1543}}^1$

素因数の和:1747

約数の個数: 24

約数和(自身を含む): 39341120

約数和(自身を除く): 18115612

約数列:

[1, 2, 4, 19, 38, 76, 181, 362, 724, 1543, 3086, 3439, 6172, 6878, 13756, 29317, 58634, 117268, 279283, 558566, 1117132, 5306377, 10612754, 21225508]

約数ペア:

[(1, 21225508), (2, 10612754), (4, 5306377), (19, 1117132), (38, 558566), (76, 279283), (181, 117268), (362, 58634), (724, 29317), (1543, 13756), (3086, 6878), (3439, 6172)]