21580144

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{28697}}^1$

素因数の和:28752

約数の個数: 20

約数和(自身を含む): 42702624

約数和(自身を除く): 21122480

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 28697, 57394, 114788, 229576, 459152, 1348759, 2697518, 5395036, 10790072, 21580144]

約数ペア:

[(1, 21580144), (2, 10790072), (4, 5395036), (8, 2697518), (16, 1348759), (47, 459152), (94, 229576), (188, 114788), (376, 57394), (752, 28697)]