28086788

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{21739}}^1$

素因数の和:21779

約数の個数: 24

約数和(自身を含む): 54784800

約数和(自身を除く): 26698012

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 646, 1292, 21739, 43478, 86956, 369563, 413041, 739126, 826082, 1478252, 1652164, 7021697, 14043394, 28086788]

約数ペア:

[(1, 28086788), (2, 14043394), (4, 7021697), (17, 1652164), (19, 1478252), (34, 826082), (38, 739126), (68, 413041), (76, 369563), (323, 86956), (646, 43478), (1292, 21739)]