21435028

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{3121}}^1$

素因数の和:3243

約数の個数: 24

約数和(自身を含む): 40123944

約数和(自身を除く): 18688916

約数列:

[1, 2, 4, 17, 34, 68, 101, 202, 404, 1717, 3121, 3434, 6242, 6868, 12484, 53057, 106114, 212228, 315221, 630442, 1260884, 5358757, 10717514, 21435028]

約数ペア:

[(1, 21435028), (2, 10717514), (4, 5358757), (17, 1260884), (34, 630442), (68, 315221), (101, 212228), (202, 106114), (404, 53057), (1717, 12484), (3121, 6868), (3434, 6242)]