20981521

素因数分解:

${\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{2939}}^1$

素因数の和:3020

約数の個数: 12

約数和(自身を含む): 23461200

約数和(自身を除く): 2479679

約数列:

[1, 11, 59, 121, 649, 2939, 7139, 32329, 173401, 355619, 1907411, 20981521]

約数ペア:

[(1, 20981521), (11, 1907411), (59, 355619), (121, 173401), (649, 32329), (2939, 7139)]