1999756479

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{709}}^1\times {\mathrm{7069}}^1$

素因数の和:7807

約数の個数: 32

約数和(自身を含む): 3212608000

約数和(自身を除く): 1212851521

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 709, 2127, 4963, 7069, 13471, 14889, 21207, 40413, 49483, 94297, 134311, 148449, 282891, 402933, 940177, 2820531, 5011921, 15035763, 35083447, 95226499, 105250341, 285679497, 666585493, 1999756479]

約数ペア:

[(1, 1999756479), (3, 666585493), (7, 285679497), (19, 105250341), (21, 95226499), (57, 35083447), (133, 15035763), (399, 5011921), (709, 2820531), (2127, 940177), (4963, 402933), (7069, 282891), (13471, 148449), (14889, 134311), (21207, 94297), (40413, 49483)]