209525617

素因数分解:

$7^2\times {\mathrm{79}}^1\times {\mathrm{113}}^1\times {\mathrm{479}}^1$

素因数の和:685

約数の個数: 24

約数和(自身を含む): 249523200

約数和(自身を除く): 39997583

約数列:

[1, 7, 49, 79, 113, 479, 553, 791, 3353, 3871, 5537, 8927, 23471, 37841, 54127, 62489, 264887, 378889, 437423, 1854209, 2652223, 4276033, 29932231, 209525617]

約数ペア:

[(1, 209525617), (7, 29932231), (49, 4276033), (79, 2652223), (113, 1854209), (479, 437423), (553, 378889), (791, 264887), (3353, 62489), (3871, 54127), (5537, 37841), (8927, 23471)]