21454719

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{3847}}^1$

素因数の和:3887

約数の個数: 24

約数和(自身を含む): 33800832

約数和(自身を除く): 12346113

約数列:

[1, 3, 11, 13, 33, 39, 143, 169, 429, 507, 1859, 3847, 5577, 11541, 42317, 50011, 126951, 150033, 550121, 650143, 1650363, 1950429, 7151573, 21454719]

約数ペア:

[(1, 21454719), (3, 7151573), (11, 1950429), (13, 1650363), (33, 650143), (39, 550121), (143, 150033), (169, 126951), (429, 50011), (507, 42317), (1859, 11541), (3847, 5577)]