21767445

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3637}}^1$

素因数の和:3674

約数の個数: 48

約数和(自身を含む): 45402240

約数和(自身を除く): 23634795

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 45, 57, 63, 95, 105, 133, 171, 285, 315, 399, 665, 855, 1197, 1995, 3637, 5985, 10911, 18185, 25459, 32733, 54555, 69103, 76377, 127295, 163665, 207309, 229131, 345515, 381885, 483721, 621927, 1036545, 1145655, 1451163, 2418605, 3109635, 4353489, 7255815, 21767445]

約数ペア:

[(1, 21767445), (3, 7255815), (5, 4353489), (7, 3109635), (9, 2418605), (15, 1451163), (19, 1145655), (21, 1036545), (35, 621927), (45, 483721), (57, 381885), (63, 345515), (95, 229131), (105, 207309), (133, 163665), (171, 127295), (285, 76377), (315, 69103), (399, 54555), (665, 32733), (855, 25459), (1197, 18185), (1995, 10911), (3637, 5985)]