21008396

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{1361}}^1$

素因数の和:1609

約数の個数: 24

約数和(自身を含む): 39127536

約数和(自身を除く): 18119140

約数列:

[1, 2, 4, 17, 34, 68, 227, 454, 908, 1361, 2722, 3859, 5444, 7718, 15436, 23137, 46274, 92548, 308947, 617894, 1235788, 5252099, 10504198, 21008396]

約数ペア:

[(1, 21008396), (2, 10504198), (4, 5252099), (17, 1235788), (34, 617894), (68, 308947), (227, 92548), (454, 46274), (908, 23137), (1361, 15436), (2722, 7718), (3859, 5444)]