16321581

素因数分解:

$3^7\times {\mathrm{17}}^1\times {\mathrm{439}}^1$

素因数の和:477

約数の個数: 32

約数和(自身を含む): 25977600

約数和(自身を除く): 9656019

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 243, 439, 459, 729, 1317, 1377, 2187, 3951, 4131, 7463, 11853, 12393, 22389, 35559, 37179, 67167, 106677, 201501, 320031, 604503, 960093, 1813509, 5440527, 16321581]

約数ペア:

[(1, 16321581), (3, 5440527), (9, 1813509), (17, 960093), (27, 604503), (51, 320031), (81, 201501), (153, 106677), (243, 67167), (439, 37179), (459, 35559), (729, 22389), (1317, 12393), (1377, 11853), (2187, 7463), (3951, 4131)]