20409003

素因数分解:

$3^4\times {\mathrm{197}}^1\times {\mathrm{1279}}^1$

素因数の和:1488

約数の個数: 20

約数和(自身を含む): 30666240

約数和(自身を除く): 10257237

約数列:

[1, 3, 9, 27, 81, 197, 591, 1279, 1773, 3837, 5319, 11511, 15957, 34533, 103599, 251963, 755889, 2267667, 6803001, 20409003]

約数ペア:

[(1, 20409003), (3, 6803001), (9, 2267667), (27, 755889), (81, 251963), (197, 103599), (591, 34533), (1279, 15957), (1773, 11511), (3837, 5319)]