28019727

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{607}}^1$

素因数の和:859

約数の個数: 24

約数和(自身を含む): 42491904

約数和(自身を除く): 14472177

約数列:

[1, 3, 9, 23, 69, 207, 223, 607, 669, 1821, 2007, 5129, 5463, 13961, 15387, 41883, 46161, 125649, 135361, 406083, 1218249, 3113303, 9339909, 28019727]

約数ペア:

[(1, 28019727), (3, 9339909), (9, 3113303), (23, 1218249), (69, 406083), (207, 135361), (223, 125649), (607, 46161), (669, 41883), (1821, 15387), (2007, 13961), (5129, 5463)]