858985239

素因数分解:

$3^1\times 7^2\times {\mathrm{977}}^1\times {\mathrm{5981}}^1$

素因数の和:6975

約数の個数: 24

約数和(自身を含む): 1333890288

約数和(自身を除く): 474905049

約数列:

[1, 3, 7, 21, 49, 147, 977, 2931, 5981, 6839, 17943, 20517, 41867, 47873, 125601, 143619, 293069, 879207, 5843437, 17530311, 40904059, 122712177, 286328413, 858985239]

約数ペア:

[(1, 858985239), (3, 286328413), (7, 122712177), (21, 40904059), (49, 17530311), (147, 5843437), (977, 879207), (2931, 293069), (5981, 143619), (6839, 125601), (17943, 47873), (20517, 41867)]