18271855

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:184

約数の個数: 48

約数和(自身を含む): 27923616

約数和(自身を除く): 9651761

約数列:

[1, 5, 7, 17, 35, 41, 49, 85, 107, 119, 205, 245, 287, 535, 595, 697, 749, 833, 1435, 1819, 2009, 3485, 3745, 4165, 4387, 4879, 5243, 9095, 10045, 12733, 21935, 24395, 26215, 30709, 34153, 63665, 74579, 89131, 153545, 170765, 214963, 372895, 445655, 522053, 1074815, 2610265, 3654371, 18271855]

約数ペア:

[(1, 18271855), (5, 3654371), (7, 2610265), (17, 1074815), (35, 522053), (41, 445655), (49, 372895), (85, 214963), (107, 170765), (119, 153545), (205, 89131), (245, 74579), (287, 63665), (535, 34153), (595, 30709), (697, 26215), (749, 24395), (833, 21935), (1435, 12733), (1819, 10045), (2009, 9095), (3485, 5243), (3745, 4879), (4165, 4387)]