21220934

素因数分解:

$2^1\times 7^1\times {\mathrm{853}}^1\times {\mathrm{1777}}^1$

素因数の和:2639

約数の個数: 16

約数和(自身を含む): 36441888

約数和(自身を除く): 15220954

約数列:

[1, 2, 7, 14, 853, 1706, 1777, 3554, 5971, 11942, 12439, 24878, 1515781, 3031562, 10610467, 21220934]

約数ペア:

[(1, 21220934), (2, 10610467), (7, 3031562), (14, 1515781), (853, 24878), (1706, 12439), (1777, 11942), (3554, 5971)]