206890257

素因数分解:

$3^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{44179}}^1$

素因数の和:44412

約数の個数: 16

約数和(自身を含む): 316682240

約数和(自身を除く): 109791983

約数列:

[1, 3, 7, 21, 223, 669, 1561, 4683, 44179, 132537, 309253, 927759, 9851917, 29555751, 68963419, 206890257]

約数ペア:

[(1, 206890257), (3, 68963419), (7, 29555751), (21, 9851917), (223, 927759), (669, 309253), (1561, 132537), (4683, 44179)]