19662994

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{4817}}^1$

素因数の和:4989

約数の個数: 16

約数和(自身を含む): 31972248

約数和(自身を除く): 12309254

約数列:

[1, 2, 13, 26, 157, 314, 2041, 4082, 4817, 9634, 62621, 125242, 756269, 1512538, 9831497, 19662994]

約数ペア:

[(1, 19662994), (2, 9831497), (13, 1512538), (26, 756269), (157, 125242), (314, 62621), (2041, 9634), (4082, 4817)]