138931891

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{701}}^1\times {\mathrm{1231}}^1$

素因数の和:1962

約数の個数: 16

約数和(自身を含む): 166053888

約数和(自身を除く): 27121997

約数列:

[1, 7, 23, 161, 701, 1231, 4907, 8617, 16123, 28313, 112861, 198191, 862931, 6040517, 19847413, 138931891]

約数ペア:

[(1, 138931891), (7, 19847413), (23, 6040517), (161, 862931), (701, 198191), (1231, 112861), (4907, 28313), (8617, 16123)]