19885754

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61757}}^1$

素因数の和:61789

約数の個数: 16

約数和(自身を含む): 35572608

約数和(自身を除く): 15686854

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 61757, 123514, 432299, 864598, 1420411, 2840822, 9942877, 19885754]

約数ペア:

[(1, 19885754), (2, 9942877), (7, 2840822), (14, 1420411), (23, 864598), (46, 432299), (161, 123514), (322, 61757)]