138339887

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1493}}^1$

素因数の和:1599

約数の個数: 24

約数和(自身を含む): 168953472

約数和(自身を除く): 30613585

約数列:

[1, 7, 31, 49, 61, 217, 427, 1493, 1519, 1891, 2989, 10451, 13237, 46283, 73157, 91073, 92659, 323981, 637511, 2267867, 2823263, 4462577, 19762841, 138339887]

約数ペア:

[(1, 138339887), (7, 19762841), (31, 4462577), (49, 2823263), (61, 2267867), (217, 637511), (427, 323981), (1493, 92659), (1519, 91073), (1891, 73157), (2989, 46283), (10451, 13237)]