19982619

素因数分解:

$3^7\times {\mathrm{9137}}^1$

素因数の和:9158

約数の個数: 16

約数和(自身を含む): 29972640

約数和(自身を除く): 9990021

約数列:

[1, 3, 9, 27, 81, 243, 729, 2187, 9137, 27411, 82233, 246699, 740097, 2220291, 6660873, 19982619]

約数ペア:

[(1, 19982619), (3, 6660873), (9, 2220291), (27, 740097), (81, 246699), (243, 82233), (729, 27411), (2187, 9137)]