21871386

素因数分解:

$2^1\times 3^2\times {\mathrm{311}}^1\times {\mathrm{3907}}^1$

素因数の和:4226

約数の個数: 24

約数和(自身を含む): 47552544

約数和(自身を除く): 25681158

約数列:

[1, 2, 3, 6, 9, 18, 311, 622, 933, 1866, 2799, 3907, 5598, 7814, 11721, 23442, 35163, 70326, 1215077, 2430154, 3645231, 7290462, 10935693, 21871386]

約数ペア:

[(1, 21871386), (2, 10935693), (3, 7290462), (6, 3645231), (9, 2430154), (18, 1215077), (311, 70326), (622, 35163), (933, 23442), (1866, 11721), (2799, 7814), (3907, 5598)]