21605528

素因数分解:

$2^3\times 7^1\times {\mathrm{281}}^1\times {\mathrm{1373}}^1$

素因数の和:1667

約数の個数: 32

約数和(自身を含む): 46496160

約数和(自身を除く): 24890632

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 281, 562, 1124, 1373, 1967, 2248, 2746, 3934, 5492, 7868, 9611, 10984, 15736, 19222, 38444, 76888, 385813, 771626, 1543252, 2700691, 3086504, 5401382, 10802764, 21605528]

約数ペア:

[(1, 21605528), (2, 10802764), (4, 5401382), (7, 3086504), (8, 2700691), (14, 1543252), (28, 771626), (56, 385813), (281, 76888), (562, 38444), (1124, 19222), (1373, 15736), (1967, 10984), (2248, 9611), (2746, 7868), (3934, 5492)]