20491966

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{569}}^1\times {\mathrm{1637}}^1$

素因数の和:2219

約数の個数: 16

約数和(自身を含む): 33611760

約数和(自身を除く): 13119794

約数列:

[1, 2, 11, 22, 569, 1138, 1637, 3274, 6259, 12518, 18007, 36014, 931453, 1862906, 10245983, 20491966]

約数ペア:

[(1, 20491966), (2, 10245983), (11, 1862906), (22, 931453), (569, 36014), (1138, 18007), (1637, 12518), (3274, 6259)]