21239412

素因数分解:

$2^2\times 3^1\times {\mathrm{223}}^1\times {\mathrm{7937}}^1$

素因数の和:8167

約数の個数: 24

約数和(自身を含む): 49787136

約数和(自身を除く): 28547724

約数列:

[1, 2, 3, 4, 6, 12, 223, 446, 669, 892, 1338, 2676, 7937, 15874, 23811, 31748, 47622, 95244, 1769951, 3539902, 5309853, 7079804, 10619706, 21239412]

約数ペア:

[(1, 21239412), (2, 10619706), (3, 7079804), (4, 5309853), (6, 3539902), (12, 1769951), (223, 95244), (446, 47622), (669, 31748), (892, 23811), (1338, 15874), (2676, 7937)]