28404278

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{106783}}^1$

素因数の和:106811

約数の個数: 16

約数和(自身を含む): 51256320

約数和(自身を除く): 22852042

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 106783, 213566, 747481, 1494962, 2028877, 4057754, 14202139, 28404278]

約数ペア:

[(1, 28404278), (2, 14202139), (7, 4057754), (14, 2028877), (19, 1494962), (38, 747481), (133, 213566), (266, 106783)]