19678269

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 29675520

約数和(自身を除く): 9997251

約数列:

[1, 3, 13, 29, 39, 87, 127, 137, 377, 381, 411, 1131, 1651, 1781, 3683, 3973, 4953, 5343, 11049, 11919, 17399, 47879, 51649, 52197, 143637, 154947, 226187, 504571, 678561, 1513713, 6559423, 19678269]

約数ペア:

[(1, 19678269), (3, 6559423), (13, 1513713), (29, 678561), (39, 504571), (87, 226187), (127, 154947), (137, 143637), (377, 52197), (381, 51649), (411, 47879), (1131, 17399), (1651, 11919), (1781, 11049), (3683, 5343), (3973, 4953)]