131389181

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{2543}}^1$

素因数の和:2633

約数の個数: 24

約数和(自身を含む): 167822592

約数和(自身を除く): 36433411

約数列:

[1, 7, 11, 61, 77, 121, 427, 671, 847, 2543, 4697, 7381, 17801, 27973, 51667, 155123, 195811, 307703, 1085861, 1706353, 2153921, 11944471, 18769883, 131389181]

約数ペア:

[(1, 131389181), (7, 18769883), (11, 11944471), (61, 2153921), (77, 1706353), (121, 1085861), (427, 307703), (671, 195811), (847, 155123), (2543, 51667), (4697, 27973), (7381, 17801)]