21798316

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{163}}^1\times {\mathrm{499}}^1$

素因数の和:733

約数の個数: 24

約数和(自身を含む): 39032000

約数和(自身を除く): 17233684

約数列:

[1, 2, 4, 67, 134, 163, 268, 326, 499, 652, 998, 1996, 10921, 21842, 33433, 43684, 66866, 81337, 133732, 162674, 325348, 5449579, 10899158, 21798316]

約数ペア:

[(1, 21798316), (2, 10899158), (4, 5449579), (67, 325348), (134, 162674), (163, 133732), (268, 81337), (326, 66866), (499, 43684), (652, 33433), (998, 21842), (1996, 10921)]