217706721

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{1181}}^1\times {\mathrm{1429}}^1$

素因数の和:2656

約数の個数: 16

約数和(自身を含む): 297485760

約数和(自身を除く): 79779039

約数列:

[1, 3, 43, 129, 1181, 1429, 3543, 4287, 50783, 61447, 152349, 184341, 1687649, 5062947, 72568907, 217706721]

約数ペア:

[(1, 217706721), (3, 72568907), (43, 5062947), (129, 1687649), (1181, 184341), (1429, 152349), (3543, 61447), (4287, 50783)]