25890291

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{6737}}^1$

素因数の和:6811

約数の個数: 24

約数和(自身を含む): 43446624

約数和(自身を除く): 17556333

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 6737, 20211, 47159, 60633, 141477, 410957, 424431, 1232871, 2876699, 3698613, 8630097, 25890291]

約数ペア:

[(1, 25890291), (3, 8630097), (7, 3698613), (9, 2876699), (21, 1232871), (61, 424431), (63, 410957), (183, 141477), (427, 60633), (549, 47159), (1281, 20211), (3843, 6737)]