57545579

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20399}}^1$

素因数の和:20450

約数の個数: 16

約数和(自身を含む): 73113600

約数和(自身を除く): 15568021

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 20399, 142793, 265187, 632369, 1856309, 4426583, 8220797, 57545579]

約数ペア:

[(1, 57545579), (7, 8220797), (13, 4426583), (31, 1856309), (91, 632369), (217, 265187), (403, 142793), (2821, 20399)]