21379662

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{16729}}^1$

素因数の和:16808

約数の個数: 24

約数和(自身を含む): 46977840

約数和(自身を除く): 25598178

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 16729, 33458, 50187, 100374, 150561, 301122, 1187759, 2375518, 3563277, 7126554, 10689831, 21379662]

約数ペア:

[(1, 21379662), (2, 10689831), (3, 7126554), (6, 3563277), (9, 2375518), (18, 1187759), (71, 301122), (142, 150561), (213, 100374), (426, 50187), (639, 33458), (1278, 16729)]