28087168893

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{70393907}}^1$

素因数の和:70393936

約数の個数: 16

約数和(自身を含む): 45052101120

約数和(自身を除く): 16964932227

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 70393907, 211181721, 492757349, 1337484233, 1478272047, 4012452699, 9362389631, 28087168893]

約数ペア:

[(1, 28087168893), (3, 9362389631), (7, 4012452699), (19, 1478272047), (21, 1337484233), (57, 492757349), (133, 211181721), (399, 70393907)]