20803412

素因数分解:

$2^2\times 7^1\times {\mathrm{311}}^1\times {\mathrm{2389}}^1$

素因数の和:2711

約数の個数: 24

約数和(自身を含む): 41758080

約数和(自身を除く): 20954668

約数列:

[1, 2, 4, 7, 14, 28, 311, 622, 1244, 2177, 2389, 4354, 4778, 8708, 9556, 16723, 33446, 66892, 742979, 1485958, 2971916, 5200853, 10401706, 20803412]

約数ペア:

[(1, 20803412), (2, 10401706), (4, 5200853), (7, 2971916), (14, 1485958), (28, 742979), (311, 66892), (622, 33446), (1244, 16723), (2177, 9556), (2389, 8708), (4354, 4778)]