21879716

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{12517}}^1$

素因数の和:12563

約数の個数: 24

約数和(自身を含む): 42060480

約数和(自身を除く): 20180764

約数列:

[1, 2, 4, 19, 23, 38, 46, 76, 92, 437, 874, 1748, 12517, 25034, 50068, 237823, 287891, 475646, 575782, 951292, 1151564, 5469929, 10939858, 21879716]

約数ペア:

[(1, 21879716), (2, 10939858), (4, 5469929), (19, 1151564), (23, 951292), (38, 575782), (46, 475646), (76, 287891), (92, 237823), (437, 50068), (874, 25034), (1748, 12517)]