19426615

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{311}}^1$

素因数の和:391

約数の個数: 24

約数和(自身を含む): 26024544

約数和(自身を除く): 6597929

約数列:

[1, 5, 13, 31, 65, 155, 311, 403, 961, 1555, 2015, 4043, 4805, 9641, 12493, 20215, 48205, 62465, 125333, 298871, 626665, 1494355, 3885323, 19426615]

約数ペア:

[(1, 19426615), (5, 3885323), (13, 1494355), (31, 626665), (65, 298871), (155, 125333), (311, 62465), (403, 48205), (961, 20215), (1555, 12493), (2015, 9641), (4043, 4805)]