217291787

素因数分解:

${\mathrm{23}}^1\times {\mathrm{37}}^2\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:267

約数の個数: 24

約数和(自身を含む): 238807296

約数和(自身を除く): 21515509

約数列:

[1, 23, 37, 67, 103, 851, 1369, 1541, 2369, 2479, 3811, 6901, 31487, 57017, 87653, 91723, 141007, 158723, 255337, 2109629, 3243161, 5872751, 9447469, 217291787]

約数ペア:

[(1, 217291787), (23, 9447469), (37, 5872751), (67, 3243161), (103, 2109629), (851, 255337), (1369, 158723), (1541, 141007), (2369, 91723), (2479, 87653), (3811, 57017), (6901, 31487)]