2019995991

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{42841}}^1$

素因数の和:42904

約数の個数: 36

約数和(自身を含む): 3261475776

約数和(自身を除く): 1241479785

約数列:

[1, 3, 9, 13, 31, 39, 93, 117, 169, 279, 403, 507, 1209, 1521, 3627, 5239, 15717, 42841, 47151, 128523, 385569, 556933, 1328071, 1670799, 3984213, 5012397, 7240129, 11952639, 17264923, 21720387, 51794769, 65161161, 155384307, 224443999, 673331997, 2019995991]

約数ペア:

[(1, 2019995991), (3, 673331997), (9, 224443999), (13, 155384307), (31, 65161161), (39, 51794769), (93, 21720387), (117, 17264923), (169, 11952639), (279, 7240129), (403, 5012397), (507, 3984213), (1209, 1670799), (1521, 1328071), (3627, 556933), (5239, 385569), (15717, 128523), (42841, 47151)]