213057145

素因数分解:

$5^1\times 7^2\times {\mathrm{829}}^1\times {\mathrm{1049}}^1$

素因数の和:1897

約数の個数: 24

約数和(自身を含む): 298053000

約数和(自身を除く): 84995855

約数列:

[1, 5, 7, 35, 49, 245, 829, 1049, 4145, 5245, 5803, 7343, 29015, 36715, 40621, 51401, 203105, 257005, 869621, 4348105, 6087347, 30436735, 42611429, 213057145]

約数ペア:

[(1, 213057145), (5, 42611429), (7, 30436735), (35, 6087347), (49, 4348105), (245, 869621), (829, 257005), (1049, 203105), (4145, 51401), (5245, 40621), (5803, 36715), (7343, 29015)]