28784007

素因数分解:

$3^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{2803}}^1$

素因数の和:2979

約数の個数: 24

約数和(自身を含む): 47825024

約数和(自身を除く): 19041017

約数列:

[1, 3, 7, 9, 21, 63, 163, 489, 1141, 1467, 2803, 3423, 8409, 10269, 19621, 25227, 58863, 176589, 456889, 1370667, 3198223, 4112001, 9594669, 28784007]

約数ペア:

[(1, 28784007), (3, 9594669), (7, 4112001), (9, 3198223), (21, 1370667), (63, 456889), (163, 176589), (489, 58863), (1141, 25227), (1467, 19621), (2803, 10269), (3423, 8409)]