20295989

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{421}}^1$

素因数の和:596

約数の個数: 16

約数和(自身を含む): 23821056

約数和(自身を除く): 3525067

約数列:

[1, 7, 71, 97, 421, 497, 679, 2947, 6887, 29891, 40837, 48209, 209237, 285859, 2899427, 20295989]

約数ペア:

[(1, 20295989), (7, 2899427), (71, 285859), (97, 209237), (421, 48209), (497, 40837), (679, 29891), (2947, 6887)]