1991465268

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{12765803}}^1$

素因数の和:12765823

約数の個数: 24

約数和(自身を含む): 5004195168

約数和(自身を除く): 3012729900

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 12765803, 25531606, 38297409, 51063212, 76594818, 153189636, 165955439, 331910878, 497866317, 663821756, 995732634, 1991465268]

約数ペア:

[(1, 1991465268), (2, 995732634), (3, 663821756), (4, 497866317), (6, 331910878), (12, 165955439), (13, 153189636), (26, 76594818), (39, 51063212), (52, 38297409), (78, 25531606), (156, 12765803)]