19309969

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1$

素因数の和:277

約数の個数: 24

約数和(自身を含む): 23639040

約数和(自身を除く): 4329071

約数列:

[1, 7, 29, 49, 107, 127, 203, 749, 889, 1421, 3103, 3683, 5243, 6223, 13589, 21721, 25781, 95123, 152047, 180467, 394081, 665861, 2758567, 19309969]

約数ペア:

[(1, 19309969), (7, 2758567), (29, 665861), (49, 394081), (107, 180467), (127, 152047), (203, 95123), (749, 25781), (889, 21721), (1421, 13589), (3103, 6223), (3683, 5243)]