28240443

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{40751}}^1$

素因数の和:40775

約数の個数: 24

約数和(自身を含む): 50858496

約数和(自身を除く): 22618053

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 40751, 122253, 285257, 366759, 448261, 855771, 1344783, 2567313, 3137827, 4034349, 9413481, 28240443]

約数ペア:

[(1, 28240443), (3, 9413481), (7, 4034349), (9, 3137827), (11, 2567313), (21, 1344783), (33, 855771), (63, 448261), (77, 366759), (99, 285257), (231, 122253), (693, 40751)]