28151721

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{8297}}^1$

素因数の和:8345

約数の個数: 24

約数和(自身を含む): 45307080

約数和(自身を除く): 17155359

約数列:

[1, 3, 9, 13, 29, 39, 87, 117, 261, 377, 1131, 3393, 8297, 24891, 74673, 107861, 240613, 323583, 721839, 970749, 2165517, 3127969, 9383907, 28151721]

約数ペア:

[(1, 28151721), (3, 9383907), (9, 3127969), (13, 2165517), (29, 970749), (39, 721839), (87, 323583), (117, 240613), (261, 107861), (377, 74673), (1131, 24891), (3393, 8297)]