18678218

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{757}}^1$

素因数の和:858

約数の個数: 24

約数和(自身を含む): 30794508

約数和(自身を除く): 12116290

約数列:

[1, 2, 13, 26, 73, 146, 169, 338, 757, 949, 1514, 1898, 9841, 12337, 19682, 24674, 55261, 110522, 127933, 255866, 718393, 1436786, 9339109, 18678218]

約数ペア:

[(1, 18678218), (2, 9339109), (13, 1436786), (26, 718393), (73, 255866), (146, 127933), (169, 110522), (338, 55261), (757, 24674), (949, 19682), (1514, 12337), (1898, 9841)]