21174248

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{155693}}^1$

素因数の和:155716

約数の個数: 16

約数和(自身を含む): 42037380

約数和(自身を除く): 20863132

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 155693, 311386, 622772, 1245544, 2646781, 5293562, 10587124, 21174248]

約数ペア:

[(1, 21174248), (2, 10587124), (4, 5293562), (8, 2646781), (17, 1245544), (34, 622772), (68, 311386), (136, 155693)]