21155684

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{28283}}^1$

素因数の和:28315

約数の個数: 24

約数和(自身を含む): 42765408

約数和(自身を除く): 21609724

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 374, 748, 28283, 56566, 113132, 311113, 480811, 622226, 961622, 1244452, 1923244, 5288921, 10577842, 21155684]

約数ペア:

[(1, 21155684), (2, 10577842), (4, 5288921), (11, 1923244), (17, 1244452), (22, 961622), (34, 622226), (44, 480811), (68, 311113), (187, 113132), (374, 56566), (748, 28283)]