20003438

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{839}}^1$

素因数の和:992

約数の個数: 32

約数和(自身を含む): 37255680

約数和(自身を除く): 17252242

約数列:

[1, 2, 7, 13, 14, 26, 91, 131, 182, 262, 839, 917, 1678, 1703, 1834, 3406, 5873, 10907, 11746, 11921, 21814, 23842, 76349, 109909, 152698, 219818, 769363, 1428817, 1538726, 2857634, 10001719, 20003438]

約数ペア:

[(1, 20003438), (2, 10001719), (7, 2857634), (13, 1538726), (14, 1428817), (26, 769363), (91, 219818), (131, 152698), (182, 109909), (262, 76349), (839, 23842), (917, 21814), (1678, 11921), (1703, 11746), (1834, 10907), (3406, 5873)]