20988514

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{1933}}^1$

素因数の和:2085

約数の個数: 16

約数和(自身を含む): 32375160

約数和(自身を除く): 11386646

約数列:

[1, 2, 61, 89, 122, 178, 1933, 3866, 5429, 10858, 117913, 172037, 235826, 344074, 10494257, 20988514]

約数ペア:

[(1, 20988514), (2, 10494257), (61, 344074), (89, 235826), (122, 172037), (178, 117913), (1933, 10858), (3866, 5429)]