20854418

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{8269}}^1$

素因数の和:8381

約数の個数: 16

約数和(自身を含む): 34039320

約数和(自身を除く): 13184902

約数列:

[1, 2, 13, 26, 97, 194, 1261, 2522, 8269, 16538, 107497, 214994, 802093, 1604186, 10427209, 20854418]

約数ペア:

[(1, 20854418), (2, 10427209), (13, 1604186), (26, 802093), (97, 214994), (194, 107497), (1261, 16538), (2522, 8269)]