18663806

素因数分解:

$2^1\times 7^2\times {\mathrm{43}}^2\times {\mathrm{103}}^1$

素因数の和:205

約数の個数: 36

約数和(自身を含む): 33665112

約数和(自身を除く): 15001306

約数列:

[1, 2, 7, 14, 43, 49, 86, 98, 103, 206, 301, 602, 721, 1442, 1849, 2107, 3698, 4214, 4429, 5047, 8858, 10094, 12943, 25886, 31003, 62006, 90601, 181202, 190447, 217021, 380894, 434042, 1333129, 2666258, 9331903, 18663806]

約数ペア:

[(1, 18663806), (2, 9331903), (7, 2666258), (14, 1333129), (43, 434042), (49, 380894), (86, 217021), (98, 190447), (103, 181202), (206, 90601), (301, 62006), (602, 31003), (721, 25886), (1442, 12943), (1849, 10094), (2107, 8858), (3698, 5047), (4214, 4429)]