18689938

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{353}}^1\times {\mathrm{1151}}^1$

素因数の和:1529

約数の個数: 16

約数和(自身を含む): 29362176

約数和(自身を除く): 10672238

約数列:

[1, 2, 23, 46, 353, 706, 1151, 2302, 8119, 16238, 26473, 52946, 406303, 812606, 9344969, 18689938]

約数ペア:

[(1, 18689938), (2, 9344969), (23, 812606), (46, 406303), (353, 52946), (706, 26473), (1151, 16238), (2302, 8119)]