28265391

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{40787}}^1$

素因数の和:40811

約数の個数: 24

約数和(自身を含む): 50903424

約数和(自身を除く): 22638033

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 40787, 122361, 285509, 367083, 448657, 856527, 1345971, 2569581, 3140599, 4037913, 9421797, 28265391]

約数ペア:

[(1, 28265391), (3, 9421797), (7, 4037913), (9, 3140599), (11, 2569581), (21, 1345971), (33, 856527), (63, 448657), (77, 367083), (99, 285509), (231, 122361), (693, 40787)]