20711834

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{521}}^1$

素因数の和:686

約数の個数: 32

約数和(自身を含む): 36832320

約数和(自身を除く): 16120486

約数列:

[1, 2, 11, 13, 22, 26, 139, 143, 278, 286, 521, 1042, 1529, 1807, 3058, 3614, 5731, 6773, 11462, 13546, 19877, 39754, 72419, 74503, 144838, 149006, 796609, 941447, 1593218, 1882894, 10355917, 20711834]

約数ペア:

[(1, 20711834), (2, 10355917), (11, 1882894), (13, 1593218), (22, 941447), (26, 796609), (139, 149006), (143, 144838), (278, 74503), (286, 72419), (521, 39754), (1042, 19877), (1529, 13546), (1807, 11462), (3058, 6773), (3614, 5731)]