21552728

素因数分解:

$2^3\times {\mathrm{521}}^1\times {\mathrm{5171}}^1$

素因数の和:5698

約数の個数: 16

約数和(自身を含む): 40496760

約数和(自身を除く): 18944032

約数列:

[1, 2, 4, 8, 521, 1042, 2084, 4168, 5171, 10342, 20684, 41368, 2694091, 5388182, 10776364, 21552728]

約数ペア:

[(1, 21552728), (2, 10776364), (4, 5388182), (8, 2694091), (521, 41368), (1042, 20684), (2084, 10342), (4168, 5171)]