20688734

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{487}}^1\times {\mathrm{1931}}^1$

素因数の和:2431

約数の個数: 16

約数和(自身を含む): 33941376

約数和(自身を除く): 13252642

約数列:

[1, 2, 11, 22, 487, 974, 1931, 3862, 5357, 10714, 21241, 42482, 940397, 1880794, 10344367, 20688734]

約数ペア:

[(1, 20688734), (2, 10344367), (11, 1880794), (22, 940397), (487, 42482), (974, 21241), (1931, 10714), (3862, 5357)]