21153561

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{3793}}^1$

素因数の和:3833

約数の個数: 24

約数和(自身を含む): 33326496

約数和(自身を除く): 12172935

約数列:

[1, 3, 11, 13, 33, 39, 143, 169, 429, 507, 1859, 3793, 5577, 11379, 41723, 49309, 125169, 147927, 542399, 641017, 1627197, 1923051, 7051187, 21153561]

約数ペア:

[(1, 21153561), (3, 7051187), (11, 1923051), (13, 1627197), (33, 641017), (39, 542399), (143, 147927), (169, 125169), (429, 49309), (507, 41723), (1859, 11379), (3793, 5577)]