81508791

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{1019}}^1$

素因数の和:1335

約数の個数: 32

約数和(自身を含む): 134346240

約数和(自身を除く): 52837449

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 293, 879, 1019, 2051, 3057, 3809, 6153, 7133, 11427, 13247, 21399, 26663, 39741, 79989, 92729, 278187, 298567, 895701, 2089969, 3881371, 6269907, 11644113, 27169597, 81508791]

約数ペア:

[(1, 81508791), (3, 27169597), (7, 11644113), (13, 6269907), (21, 3881371), (39, 2089969), (91, 895701), (273, 298567), (293, 278187), (879, 92729), (1019, 79989), (2051, 39741), (3057, 26663), (3809, 21399), (6153, 13247), (7133, 11427)]