28162377

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{191}}^1$

素因数の和:370

約数の個数: 32

約数和(自身を含む): 43253760

約数和(自身を除く): 15091383

約数列:

[1, 3, 9, 27, 43, 127, 129, 191, 381, 387, 573, 1143, 1161, 1719, 3429, 5157, 5461, 8213, 16383, 24257, 24639, 49149, 72771, 73917, 147447, 218313, 221751, 654939, 1043051, 3129153, 9387459, 28162377]

約数ペア:

[(1, 28162377), (3, 9387459), (9, 3129153), (27, 1043051), (43, 654939), (127, 221751), (129, 218313), (191, 147447), (381, 73917), (387, 72771), (573, 49149), (1143, 24639), (1161, 24257), (1719, 16383), (3429, 8213), (5157, 5461)]