18996872

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{26681}}^1$

素因数の和:26776

約数の個数: 16

約数和(自身を含む): 36020700

約数和(自身を除く): 17023828

約数列:

[1, 2, 4, 8, 89, 178, 356, 712, 26681, 53362, 106724, 213448, 2374609, 4749218, 9498436, 18996872]

約数ペア:

[(1, 18996872), (2, 9498436), (4, 4749218), (8, 2374609), (89, 213448), (178, 106724), (356, 53362), (712, 26681)]