19891251

素因数分解:

$3^5\times {\mathrm{23}}^1\times {\mathrm{3559}}^1$

素因数の和:3597

約数の個数: 24

約数和(自身を含む): 31100160

約数和(自身を除く): 11208909

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 243, 621, 1863, 3559, 5589, 10677, 32031, 81857, 96093, 245571, 288279, 736713, 864837, 2210139, 6630417, 19891251]

約数ペア:

[(1, 19891251), (3, 6630417), (9, 2210139), (23, 864837), (27, 736713), (69, 288279), (81, 245571), (207, 96093), (243, 81857), (621, 32031), (1863, 10677), (3559, 5589)]