81745027

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{997}}^1$

素因数の和:1087

約数の個数: 32

約数和(自身を含む): 108646272

約数和(自身を除く): 26901245

約数列:

[1, 7, 13, 17, 53, 91, 119, 221, 371, 689, 901, 997, 1547, 4823, 6307, 6979, 11713, 12961, 16949, 52841, 81991, 90727, 118643, 220337, 369887, 686933, 898297, 1542359, 4808531, 6288079, 11677861, 81745027]

約数ペア:

[(1, 81745027), (7, 11677861), (13, 6288079), (17, 4808531), (53, 1542359), (91, 898297), (119, 686933), (221, 369887), (371, 220337), (689, 118643), (901, 90727), (997, 81991), (1547, 52841), (4823, 16949), (6307, 12961), (6979, 11713)]