21790492

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{1759}}^1$

素因数の和:1945

約数の個数: 24

約数和(自身を含む): 40409600

約数和(自身を除く): 18619108

約数列:

[1, 2, 4, 19, 38, 76, 163, 326, 652, 1759, 3097, 3518, 6194, 7036, 12388, 33421, 66842, 133684, 286717, 573434, 1146868, 5447623, 10895246, 21790492]

約数ペア:

[(1, 21790492), (2, 10895246), (4, 5447623), (19, 1146868), (38, 573434), (76, 286717), (163, 133684), (326, 66842), (652, 33421), (1759, 12388), (3097, 7036), (3518, 6194)]