18987116

素因数分解:

$2^2\times {\mathrm{239}}^1\times {\mathrm{19861}}^1$

素因数の和:20104

約数の個数: 12

約数和(自身を含む): 33368160

約数和(自身を除く): 14381044

約数列:

[1, 2, 4, 239, 478, 956, 19861, 39722, 79444, 4746779, 9493558, 18987116]

約数ペア:

[(1, 18987116), (2, 9493558), (4, 4746779), (239, 79444), (478, 39722), (956, 19861)]