20212959

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{12641}}^1$

素因数の和:12698

約数の個数: 16

約数和(自身を含む): 29733984

約数和(自身を除く): 9521025

約数列:

[1, 3, 13, 39, 41, 123, 533, 1599, 12641, 37923, 164333, 492999, 518281, 1554843, 6737653, 20212959]

約数ペア:

[(1, 20212959), (3, 6737653), (13, 1554843), (39, 518281), (41, 492999), (123, 164333), (533, 37923), (1599, 12641)]