21811450

素因数分解:

$2^1\times 5^2\times {\mathrm{379}}^1\times {\mathrm{1151}}^1$

素因数の和:1542

約数の個数: 24

約数和(自身を含む): 40711680

約数和(自身を除く): 18900230

約数列:

[1, 2, 5, 10, 25, 50, 379, 758, 1151, 1895, 2302, 3790, 5755, 9475, 11510, 18950, 28775, 57550, 436229, 872458, 2181145, 4362290, 10905725, 21811450]

約数ペア:

[(1, 21811450), (2, 10905725), (5, 4362290), (10, 2181145), (25, 872458), (50, 436229), (379, 57550), (758, 28775), (1151, 18950), (1895, 11510), (2302, 9475), (3790, 5755)]