21203726

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{8543}}^1$

素因数の和:8635

約数の個数: 16

約数和(自身を含む): 34141824

約数和(自身を除く): 12938098

約数列:

[1, 2, 17, 34, 73, 146, 1241, 2482, 8543, 17086, 145231, 290462, 623639, 1247278, 10601863, 21203726]

約数ペア:

[(1, 21203726), (2, 10601863), (17, 1247278), (34, 623639), (73, 290462), (146, 145231), (1241, 17086), (2482, 8543)]