20996619

素因数分解:

$3^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{3533}}^1$

素因数の和:3826

約数の個数: 16

約数和(自身を含む): 32116992

約数和(自身を除く): 11120373

約数列:

[1, 3, 7, 21, 283, 849, 1981, 3533, 5943, 10599, 24731, 74193, 999839, 2999517, 6998873, 20996619]

約数ペア:

[(1, 20996619), (3, 6998873), (7, 2999517), (21, 999839), (283, 74193), (849, 24731), (1981, 10599), (3533, 5943)]