18353209

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{1019}}^1$

素因数の和:1140

約数の個数: 16

約数和(自身を含む): 21934080

約数和(自身を除く): 3580871

約数列:

[1, 7, 31, 83, 217, 581, 1019, 2573, 7133, 18011, 31589, 84577, 221123, 592039, 2621887, 18353209]

約数ペア:

[(1, 18353209), (7, 2621887), (31, 592039), (83, 221123), (217, 84577), (581, 31589), (1019, 18011), (2573, 7133)]