20990674

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{487}}^1\times {\mathrm{937}}^1$

素因数の和:1449

約数の個数: 16

約数和(自身を含む): 32957568

約数和(自身を除く): 11966894

約数列:

[1, 2, 23, 46, 487, 937, 974, 1874, 11201, 21551, 22402, 43102, 456319, 912638, 10495337, 20990674]

約数ペア:

[(1, 20990674), (2, 10495337), (23, 912638), (46, 456319), (487, 43102), (937, 22402), (974, 21551), (1874, 11201)]