21317804

素因数分解:

$2^2\times {\mathrm{313}}^1\times {\mathrm{17027}}^1$

素因数の和:17344

約数の個数: 12

約数和(自身を含む): 37427544

約数和(自身を除く): 16109740

約数列:

[1, 2, 4, 313, 626, 1252, 17027, 34054, 68108, 5329451, 10658902, 21317804]

約数ペア:

[(1, 21317804), (2, 10658902), (4, 5329451), (313, 68108), (626, 34054), (1252, 17027)]