21129156

素因数分解:

$2^2\times 3^2\times {\mathrm{586921}}^1$

素因数の和:586931

約数の個数: 18

約数和(自身を含む): 53409902

約数和(自身を除く): 32280746

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 586921, 1173842, 1760763, 2347684, 3521526, 5282289, 7043052, 10564578, 21129156]

約数ペア:

[(1, 21129156), (2, 10564578), (3, 7043052), (4, 5282289), (6, 3521526), (9, 2347684), (12, 1760763), (18, 1173842), (36, 586921)]