21491609913

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{2129}}^1\times {\mathrm{38677}}^1$

素因数の和:40841

約数の個数: 24

約数和(自身を含む): 32129814600

約数和(自身を除く): 10638204687

約数列:

[1, 3, 9, 29, 87, 261, 2129, 6387, 19161, 38677, 61741, 116031, 185223, 348093, 555669, 1121633, 3364899, 10094697, 82343333, 247029999, 741089997, 2387956657, 7163869971, 21491609913]

約数ペア:

[(1, 21491609913), (3, 7163869971), (9, 2387956657), (29, 741089997), (87, 247029999), (261, 82343333), (2129, 10094697), (6387, 3364899), (19161, 1121633), (38677, 555669), (61741, 348093), (116031, 185223)]