21181424

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{120349}}^1$

素因数の和:120368

約数の個数: 20

約数和(自身を含む): 44770200

約数和(自身を除く): 23588776

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 120349, 240698, 481396, 962792, 1323839, 1925584, 2647678, 5295356, 10590712, 21181424]

約数ペア:

[(1, 21181424), (2, 10590712), (4, 5295356), (8, 2647678), (11, 1925584), (16, 1323839), (22, 962792), (44, 481396), (88, 240698), (176, 120349)]