409876767

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{220009}}^1$

素因数の和:220044

約数の個数: 20

約数和(自身を含む): 638909040

約数和(自身を除く): 229032273

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 220009, 660027, 1980081, 5060207, 5940243, 15180621, 17820729, 45541863, 136625589, 409876767]

約数ペア:

[(1, 409876767), (3, 136625589), (9, 45541863), (23, 17820729), (27, 15180621), (69, 5940243), (81, 5060207), (207, 1980081), (621, 660027), (1863, 220009)]