18031881

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^2\times {\mathrm{1021}}^1$

素因数の和:1089

約数の個数: 24

約数和(自身を含む): 28485184

約数和(自身を除く): 10453303

約数列:

[1, 3, 7, 21, 29, 87, 203, 609, 841, 1021, 2523, 3063, 5887, 7147, 17661, 21441, 29609, 88827, 207263, 621789, 858661, 2575983, 6010627, 18031881]

約数ペア:

[(1, 18031881), (3, 6010627), (7, 2575983), (21, 858661), (29, 621789), (87, 207263), (203, 88827), (609, 29609), (841, 21441), (1021, 17661), (2523, 7147), (3063, 5887)]