20278545

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{1279}}^1$

素因数の和:1445

約数の個数: 32

約数和(自身を含む): 37355520

約数和(自身を除く): 17076975

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 151, 453, 755, 1057, 1279, 2265, 3171, 3837, 5285, 6395, 8953, 15855, 19185, 26859, 44765, 134295, 193129, 579387, 965645, 1351903, 2896935, 4055709, 6759515, 20278545]

約数ペア:

[(1, 20278545), (3, 6759515), (5, 4055709), (7, 2896935), (15, 1351903), (21, 965645), (35, 579387), (105, 193129), (151, 134295), (453, 44765), (755, 26859), (1057, 19185), (1279, 15855), (2265, 8953), (3171, 6395), (3837, 5285)]