20996445

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{82339}}^1$

素因数の和:82364

約数の個数: 16

約数和(自身を含む): 35570880

約数和(自身を除く): 14574435

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 82339, 247017, 411695, 1235085, 1399763, 4199289, 6998815, 20996445]

約数ペア:

[(1, 20996445), (3, 6998815), (5, 4199289), (15, 1399763), (17, 1235085), (51, 411695), (85, 247017), (255, 82339)]