81516957

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{113}}^1$

素因数の和:317

約数の個数: 32

約数和(自身を含む): 115473792

約数和(自身を除く): 33956835

約数列:

[1, 3, 37, 67, 97, 111, 113, 201, 291, 339, 2479, 3589, 4181, 6499, 7437, 7571, 10767, 10961, 12543, 19497, 22713, 32883, 240463, 280127, 405557, 721389, 734387, 840381, 1216671, 2203161, 27172319, 81516957]

約数ペア:

[(1, 81516957), (3, 27172319), (37, 2203161), (67, 1216671), (97, 840381), (111, 734387), (113, 721389), (201, 405557), (291, 280127), (339, 240463), (2479, 32883), (3589, 22713), (4181, 19497), (6499, 12543), (7437, 10961), (7571, 10767)]