21137512

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{401}}^1\times {\mathrm{599}}^1$

素因数の和:1017

約数の個数: 32

約数和(自身を含む): 43416000

約数和(自身を除く): 22278488

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 401, 599, 802, 1198, 1604, 2396, 3208, 4411, 4792, 6589, 8822, 13178, 17644, 26356, 35288, 52712, 240199, 480398, 960796, 1921592, 2642189, 5284378, 10568756, 21137512]

約数ペア:

[(1, 21137512), (2, 10568756), (4, 5284378), (8, 2642189), (11, 1921592), (22, 960796), (44, 480398), (88, 240199), (401, 52712), (599, 35288), (802, 26356), (1198, 17644), (1604, 13178), (2396, 8822), (3208, 6589), (4411, 4792)]