279957219

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{601}}^1$

素因数の和:827

約数の個数: 32

約数和(自身を含む): 401769984

約数和(自身を除く): 121812765

約数列:

[1, 3, 23, 43, 69, 129, 157, 471, 601, 989, 1803, 2967, 3611, 6751, 10833, 13823, 20253, 25843, 41469, 77529, 94357, 155273, 283071, 465819, 594389, 1783167, 2170211, 4057351, 6510633, 12172053, 93319073, 279957219]

約数ペア:

[(1, 279957219), (3, 93319073), (23, 12172053), (43, 6510633), (69, 4057351), (129, 2170211), (157, 1783167), (471, 594389), (601, 465819), (989, 283071), (1803, 155273), (2967, 94357), (3611, 77529), (6751, 41469), (10833, 25843), (13823, 20253)]