31207198

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{19979}}^1$

素因数の和:20063

約数の個数: 16

約数和(自身を含む): 51788160

約数和(自身を除く): 20580962

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 19979, 39958, 219769, 439538, 1418509, 2837018, 15603599, 31207198]

約数ペア:

[(1, 31207198), (2, 15603599), (11, 2837018), (22, 1418509), (71, 439538), (142, 219769), (781, 39958), (1562, 19979)]