28071351

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{40507}}^1$

素因数の和:40531

約数の個数: 24

約数和(自身を含む): 50553984

約数和(自身を除く): 22482633

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 40507, 121521, 283549, 364563, 445577, 850647, 1336731, 2551941, 3119039, 4010193, 9357117, 28071351]

約数ペア:

[(1, 28071351), (3, 9357117), (7, 4010193), (9, 3119039), (11, 2551941), (21, 1336731), (33, 850647), (63, 445577), (77, 364563), (99, 283549), (231, 121521), (693, 40507)]