247401721

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{269}}^1$

素因数の和:433

約数の個数: 32

約数和(自身を含む): 301397760

約数和(自身を除く): 53996039

約数列:

[1, 7, 37, 53, 67, 259, 269, 371, 469, 1883, 1961, 2479, 3551, 9953, 13727, 14257, 17353, 18023, 24857, 69671, 99799, 126161, 131387, 527509, 666851, 919709, 955219, 3692563, 4667957, 6686533, 35343103, 247401721]

約数ペア:

[(1, 247401721), (7, 35343103), (37, 6686533), (53, 4667957), (67, 3692563), (259, 955219), (269, 919709), (371, 666851), (469, 527509), (1883, 131387), (1961, 126161), (2479, 99799), (3551, 69671), (9953, 24857), (13727, 18023), (14257, 17353)]