20640802578

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{3958727}}^1$

素因数の和:3958822

約数の個数: 32

約数和(自身を含む): 45604546560

約数和(自身を除く): 24963743982

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 79, 158, 237, 474, 869, 1738, 2607, 5214, 3958727, 7917454, 11876181, 23752362, 43545997, 87091994, 130637991, 261275982, 312739433, 625478866, 938218299, 1876436598, 3440133763, 6880267526, 10320401289, 20640802578]

約数ペア:

[(1, 20640802578), (2, 10320401289), (3, 6880267526), (6, 3440133763), (11, 1876436598), (22, 938218299), (33, 625478866), (66, 312739433), (79, 261275982), (158, 130637991), (237, 87091994), (474, 43545997), (869, 23752362), (1738, 11876181), (2607, 7917454), (5214, 3958727)]