21026756

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{373}}^1\times {\mathrm{829}}^1$

素因数の和:1223

約数の個数: 24

約数和(自身を含む): 39112920

約数和(自身を除く): 18086164

約数列:

[1, 2, 4, 17, 34, 68, 373, 746, 829, 1492, 1658, 3316, 6341, 12682, 14093, 25364, 28186, 56372, 309217, 618434, 1236868, 5256689, 10513378, 21026756]

約数ペア:

[(1, 21026756), (2, 10513378), (4, 5256689), (17, 1236868), (34, 618434), (68, 309217), (373, 56372), (746, 28186), (829, 25364), (1492, 14093), (1658, 12682), (3316, 6341)]