18622821

素因数分解:

$3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{6473}}^1$

素因数の和:6620

約数の個数: 16

約数和(自身を含む): 28589184

約数和(自身を除く): 9966363

約数列:

[1, 3, 7, 21, 137, 411, 959, 2877, 6473, 19419, 45311, 135933, 886801, 2660403, 6207607, 18622821]

約数ペア:

[(1, 18622821), (3, 6207607), (7, 2660403), (21, 886801), (137, 135933), (411, 45311), (959, 19419), (2877, 6473)]