19864228

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{293}}^1\times {\mathrm{997}}^1$

素因数の和:1311

約数の個数: 24

約数和(自身を含む): 36969912

約数和(自身を除く): 17105684

約数列:

[1, 2, 4, 17, 34, 68, 293, 586, 997, 1172, 1994, 3988, 4981, 9962, 16949, 19924, 33898, 67796, 292121, 584242, 1168484, 4966057, 9932114, 19864228]

約数ペア:

[(1, 19864228), (2, 9932114), (4, 4966057), (17, 1168484), (34, 584242), (68, 292121), (293, 67796), (586, 33898), (997, 19924), (1172, 16949), (1994, 9962), (3988, 4981)]