21730579

素因数分解:

${\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{409}}^1$

素因数の和:550

約数の個数: 16

約数和(自身を含む): 24199840

約数和(自身を除く): 2469261

約数列:

[1, 13, 61, 67, 409, 793, 871, 4087, 5317, 24949, 27403, 53131, 324337, 356239, 1671583, 21730579]

約数ペア:

[(1, 21730579), (13, 1671583), (61, 356239), (67, 324337), (409, 53131), (793, 27403), (871, 24949), (4087, 5317)]