20386107

素因数分解:

$3^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{811}}^1$

素因数の和:853

約数の個数: 48

約数和(自身を含む): 37027200

約数和(自身を除く): 16641093

約数列:

[1, 3, 7, 9, 19, 21, 27, 49, 57, 63, 133, 147, 171, 189, 399, 441, 513, 811, 931, 1197, 1323, 2433, 2793, 3591, 5677, 7299, 8379, 15409, 17031, 21897, 25137, 39739, 46227, 51093, 107863, 119217, 138681, 153279, 323589, 357651, 416043, 755041, 970767, 1072953, 2265123, 2912301, 6795369, 20386107]

約数ペア:

[(1, 20386107), (3, 6795369), (7, 2912301), (9, 2265123), (19, 1072953), (21, 970767), (27, 755041), (49, 416043), (57, 357651), (63, 323589), (133, 153279), (147, 138681), (171, 119217), (189, 107863), (399, 51093), (441, 46227), (513, 39739), (811, 25137), (931, 21897), (1197, 17031), (1323, 15409), (2433, 8379), (2793, 7299), (3591, 5677)]