20123992902

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{257999909}}^1$

素因数の和:257999927

約数の個数: 16

約数和(自身を含む): 43343984880

約数和(自身を除く): 23219991978

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 257999909, 515999818, 773999727, 1547999454, 3353998817, 6707997634, 10061996451, 20123992902]

約数ペア:

[(1, 20123992902), (2, 10061996451), (3, 6707997634), (6, 3353998817), (13, 1547999454), (26, 773999727), (39, 515999818), (78, 257999909)]