19810186

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^2\times {\mathrm{487}}^1$

素因数の和:586

約数の個数: 24

約数和(自身を含む): 33256224

約数和(自身を除く): 13446038

約数列:

[1, 2, 11, 22, 43, 86, 473, 487, 946, 974, 1849, 3698, 5357, 10714, 20339, 20941, 40678, 41882, 230351, 460702, 900463, 1800926, 9905093, 19810186]

約数ペア:

[(1, 19810186), (2, 9905093), (11, 1800926), (22, 900463), (43, 460702), (86, 230351), (473, 41882), (487, 40678), (946, 20941), (974, 20339), (1849, 10714), (3698, 5357)]