18919442

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{677}}^1$

素因数の和:925

約数の個数: 16

約数和(自身を含む): 28923480

約数和(自身を除く): 10004038

約数列:

[1, 2, 89, 157, 178, 314, 677, 1354, 13973, 27946, 60253, 106289, 120506, 212578, 9459721, 18919442]

約数ペア:

[(1, 18919442), (2, 9459721), (89, 212578), (157, 120506), (178, 106289), (314, 60253), (677, 27946), (1354, 13973)]