81319953

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1447}}^1$

素因数の和:1605

約数の個数: 32

約数和(自身を含む): 128443392

約数和(自身を除く): 47123439

約数列:

[1, 3, 11, 13, 33, 39, 131, 143, 393, 429, 1441, 1447, 1703, 4323, 4341, 5109, 15917, 18733, 18811, 47751, 56199, 56433, 189557, 206921, 568671, 620763, 2085127, 2464241, 6255381, 7392723, 27106651, 81319953]

約数ペア:

[(1, 81319953), (3, 27106651), (11, 7392723), (13, 6255381), (33, 2464241), (39, 2085127), (131, 620763), (143, 568671), (393, 206921), (429, 189557), (1441, 56433), (1447, 56199), (1703, 47751), (4323, 18811), (4341, 18733), (5109, 15917)]