21688870

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{44263}}^1$

素因数の和:44284

約数の個数: 24

約数和(自身を含む): 45414864

約数和(自身を除く): 23725994

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 44263, 88526, 221315, 309841, 442630, 619682, 1549205, 2168887, 3098410, 4337774, 10844435, 21688870]

約数ペア:

[(1, 21688870), (2, 10844435), (5, 4337774), (7, 3098410), (10, 2168887), (14, 1549205), (35, 619682), (49, 442630), (70, 309841), (98, 221315), (245, 88526), (490, 44263)]