20401953

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2503}}^1$

素因数の和:2549

約数の個数: 32

約数和(自身を含む): 33653760

約数和(自身を除く): 13251807

約数列:

[1, 3, 11, 13, 19, 33, 39, 57, 143, 209, 247, 429, 627, 741, 2503, 2717, 7509, 8151, 27533, 32539, 47557, 82599, 97617, 142671, 357929, 523127, 618241, 1073787, 1569381, 1854723, 6800651, 20401953]

約数ペア:

[(1, 20401953), (3, 6800651), (11, 1854723), (13, 1569381), (19, 1073787), (33, 618241), (39, 523127), (57, 357929), (143, 142671), (209, 97617), (247, 82599), (429, 47557), (627, 32539), (741, 27533), (2503, 8151), (2717, 7509)]