21690722

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{3187}}^1$

素因数の和:3313

約数の個数: 16

約数和(自身を含む): 33741792

約数和(自身を除く): 12051070

約数列:

[1, 2, 41, 82, 83, 166, 3187, 3403, 6374, 6806, 130667, 261334, 264521, 529042, 10845361, 21690722]

約数ペア:

[(1, 21690722), (2, 10845361), (41, 529042), (82, 264521), (83, 261334), (166, 130667), (3187, 6806), (3403, 6374)]