20747518

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{313}}^1$

素因数の和:480

約数の個数: 32

約数和(自身を含む): 35811072

約数和(自身を除く): 15063554

約数列:

[1, 2, 11, 22, 23, 46, 131, 253, 262, 313, 506, 626, 1441, 2882, 3013, 3443, 6026, 6886, 7199, 14398, 33143, 41003, 66286, 79189, 82006, 158378, 451033, 902066, 943069, 1886138, 10373759, 20747518]

約数ペア:

[(1, 20747518), (2, 10373759), (11, 1886138), (22, 943069), (23, 902066), (46, 451033), (131, 158378), (253, 82006), (262, 79189), (313, 66286), (506, 41003), (626, 33143), (1441, 14398), (2882, 7199), (3013, 6886), (3443, 6026)]