20911256

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{331}}^1$

素因数の和:539

約数の個数: 32

約数和(自身を含む): 40338000

約数和(自身を除く): 19426744

約数列:

[1, 2, 4, 8, 53, 106, 149, 212, 298, 331, 424, 596, 662, 1192, 1324, 2648, 7897, 15794, 17543, 31588, 35086, 49319, 63176, 70172, 98638, 140344, 197276, 394552, 2613907, 5227814, 10455628, 20911256]

約数ペア:

[(1, 20911256), (2, 10455628), (4, 5227814), (8, 2613907), (53, 394552), (106, 197276), (149, 140344), (212, 98638), (298, 70172), (331, 63176), (424, 49319), (596, 35086), (662, 31588), (1192, 17543), (1324, 15794), (2648, 7897)]