21856581

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{26113}}^1$

素因数の和:26153

約数の個数: 16

約数和(自身を含む): 33425920

約数和(自身を除く): 11569339

約数列:

[1, 3, 9, 27, 31, 93, 279, 837, 26113, 78339, 235017, 705051, 809503, 2428509, 7285527, 21856581]

約数ペア:

[(1, 21856581), (3, 7285527), (9, 2428509), (27, 809503), (31, 705051), (93, 235017), (279, 78339), (837, 26113)]