17921678

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{2069}}^1$

素因数の和:2203

約数の個数: 16

約数和(自身を含む): 27721440

約数和(自身を除く): 9799762

約数列:

[1, 2, 61, 71, 122, 142, 2069, 4138, 4331, 8662, 126209, 146899, 252418, 293798, 8960839, 17921678]

約数ペア:

[(1, 17921678), (2, 8960839), (61, 293798), (71, 252418), (122, 146899), (142, 126209), (2069, 8662), (4138, 4331)]