20821095

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20117}}^1$

素因数の和:20151

約数の個数: 24

約数和(自身を含む): 37660896

約数和(自身を除く): 16839801

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 20117, 60351, 100585, 181053, 301755, 462691, 905265, 1388073, 2313455, 4164219, 6940365, 20821095]

約数ペア:

[(1, 20821095), (3, 6940365), (5, 4164219), (9, 2313455), (15, 1388073), (23, 905265), (45, 462691), (69, 301755), (115, 181053), (207, 100585), (345, 60351), (1035, 20117)]