20990704

素因数分解:

$2^4\times 7^1\times {\mathrm{187417}}^1$

素因数の和:187432

約数の個数: 20

約数和(自身を含む): 46479664

約数和(自身を除く): 25488960

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 187417, 374834, 749668, 1311919, 1499336, 2623838, 2998672, 5247676, 10495352, 20990704]

約数ペア:

[(1, 20990704), (2, 10495352), (4, 5247676), (7, 2998672), (8, 2623838), (14, 1499336), (16, 1311919), (28, 749668), (56, 374834), (112, 187417)]