20981085

素因数分解:

$3^1\times 5^1\times {\mathrm{617}}^1\times {\mathrm{2267}}^1$

素因数の和:2892

約数の個数: 16

約数和(自身を含む): 33638976

約数和(自身を除く): 12657891

約数列:

[1, 3, 5, 15, 617, 1851, 2267, 3085, 6801, 9255, 11335, 34005, 1398739, 4196217, 6993695, 20981085]

約数ペア:

[(1, 20981085), (3, 6993695), (5, 4196217), (15, 1398739), (617, 34005), (1851, 11335), (2267, 9255), (3085, 6801)]