19886646

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{1861}}^1$

素因数の和:2016

約数の個数: 32

約数和(自身を含む): 43168608

約数和(自身を除く): 23281962

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 137, 274, 411, 822, 1781, 1861, 3562, 3722, 5343, 5583, 10686, 11166, 24193, 48386, 72579, 145158, 254957, 509914, 764871, 1529742, 3314441, 6628882, 9943323, 19886646]

約数ペア:

[(1, 19886646), (2, 9943323), (3, 6628882), (6, 3314441), (13, 1529742), (26, 764871), (39, 509914), (78, 254957), (137, 145158), (274, 72579), (411, 48386), (822, 24193), (1781, 11166), (1861, 10686), (3562, 5583), (3722, 5343)]