81041961

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{26987}}^1$

素因数の和:27021

約数の個数: 32

約数和(自身を含む): 145087488

約数和(自身を除く): 64045527

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 143, 231, 273, 429, 1001, 3003, 26987, 80961, 188909, 296857, 350831, 566727, 890571, 1052493, 2077999, 2455817, 3859141, 6233997, 7367451, 11577423, 27013987, 81041961]

約数ペア:

[(1, 81041961), (3, 27013987), (7, 11577423), (11, 7367451), (13, 6233997), (21, 3859141), (33, 2455817), (39, 2077999), (77, 1052493), (91, 890571), (143, 566727), (231, 350831), (273, 296857), (429, 188909), (1001, 80961), (3003, 26987)]