142821825

素因数分解:

$3^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{26821}}^1$

素因数の和:26905

約数の個数: 24

約数和(自身を含む): 239466816

約数和(自身を除く): 96644991

約数列:

[1, 3, 5, 15, 25, 71, 75, 213, 355, 1065, 1775, 5325, 26821, 80463, 134105, 402315, 670525, 1904291, 2011575, 5712873, 9521455, 28564365, 47607275, 142821825]

約数ペア:

[(1, 142821825), (3, 47607275), (5, 28564365), (15, 9521455), (25, 5712873), (71, 2011575), (75, 1904291), (213, 670525), (355, 402315), (1065, 134105), (1775, 80463), (5325, 26821)]