21684088

素因数分解:

$2^3\times {\mathrm{419}}^1\times {\mathrm{6469}}^1$

素因数の和:6894

約数の個数: 16

約数和(自身を含む): 40761000

約数和(自身を除く): 19076912

約数列:

[1, 2, 4, 8, 419, 838, 1676, 3352, 6469, 12938, 25876, 51752, 2710511, 5421022, 10842044, 21684088]

約数ペア:

[(1, 21684088), (2, 10842044), (4, 5421022), (8, 2710511), (419, 51752), (838, 25876), (1676, 12938), (3352, 6469)]