21567897

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1429}}^1$

素因数の和:1494

約数の個数: 32

約数和(自身を含む): 35235200

約数和(自身を除く): 13667303

約数列:

[1, 3, 9, 13, 27, 39, 43, 117, 129, 351, 387, 559, 1161, 1429, 1677, 4287, 5031, 12861, 15093, 18577, 38583, 55731, 61447, 167193, 184341, 501579, 553023, 798811, 1659069, 2396433, 7189299, 21567897]

約数ペア:

[(1, 21567897), (3, 7189299), (9, 2396433), (13, 1659069), (27, 798811), (39, 553023), (43, 501579), (117, 184341), (129, 167193), (351, 61447), (387, 55731), (559, 38583), (1161, 18577), (1429, 15093), (1677, 12861), (4287, 5031)]