20979946

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{19681}}^1$

素因数の和:19737

約数の個数: 16

約数和(自身を含む): 34719048

約数和(自身を除く): 13739102

約数列:

[1, 2, 13, 26, 41, 82, 533, 1066, 19681, 39362, 255853, 511706, 806921, 1613842, 10489973, 20979946]

約数ペア:

[(1, 20979946), (2, 10489973), (13, 1613842), (26, 806921), (41, 511706), (82, 255853), (533, 39362), (1066, 19681)]