31389171

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{13397}}^1$

素因数の和:13482

約数の個数: 16

約数和(自身を含む): 46303488

約数和(自身を除く): 14914317

約数列:

[1, 3, 11, 33, 71, 213, 781, 2343, 13397, 40191, 147367, 442101, 951187, 2853561, 10463057, 31389171]

約数ペア:

[(1, 31389171), (3, 10463057), (11, 2853561), (33, 951187), (71, 442101), (213, 147367), (781, 40191), (2343, 13397)]