13387731

素因数分解:

$3^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1493}}^1$

素因数の和:1571

約数の個数: 24

約数和(自身を含む): 21119184

約数和(自身を除く): 7731453

約数列:

[1, 3, 7, 21, 49, 61, 147, 183, 427, 1281, 1493, 2989, 4479, 8967, 10451, 31353, 73157, 91073, 219471, 273219, 637511, 1912533, 4462577, 13387731]

約数ペア:

[(1, 13387731), (3, 4462577), (7, 1912533), (21, 637511), (49, 273219), (61, 219471), (147, 91073), (183, 73157), (427, 31353), (1281, 10451), (1493, 8967), (2989, 4479)]