18255489

素因数分解:

$3^1\times 7^3\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:294

約数の個数: 32

約数和(自身を含む): 28819200

約数和(自身を除く): 10563711

約数列:

[1, 3, 7, 21, 49, 113, 147, 157, 339, 343, 471, 791, 1029, 1099, 2373, 3297, 5537, 7693, 16611, 17741, 23079, 38759, 53223, 53851, 116277, 124187, 161553, 372561, 869309, 2607927, 6085163, 18255489]

約数ペア:

[(1, 18255489), (3, 6085163), (7, 2607927), (21, 869309), (49, 372561), (113, 161553), (147, 124187), (157, 116277), (339, 53851), (343, 53223), (471, 38759), (791, 23079), (1029, 17741), (1099, 16611), (2373, 7693), (3297, 5537)]