31389897

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{135887}}^1$

素因数の和:135908

約数の個数: 16

約数和(自身を含む): 52180992

約数和(自身を除く): 20791095

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 135887, 407661, 951209, 1494757, 2853627, 4484271, 10463299, 31389897]

約数ペア:

[(1, 31389897), (3, 10463299), (7, 4484271), (11, 2853627), (21, 1494757), (33, 951209), (77, 407661), (231, 135887)]