19868752

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{28879}}^1$

素因数の和:28930

約数の個数: 20

約数和(自身を含む): 39392320

約数和(自身を除く): 19523568

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 28879, 57758, 115516, 231032, 462064, 1241797, 2483594, 4967188, 9934376, 19868752]

約数ペア:

[(1, 19868752), (2, 9934376), (4, 4967188), (8, 2483594), (16, 1241797), (43, 462064), (86, 231032), (172, 115516), (344, 57758), (688, 28879)]