21662360

素因数分解:

$2^3\times 5^1\times {\mathrm{337}}^1\times {\mathrm{1607}}^1$

素因数の和:1955

約数の個数: 32

約数和(自身を含む): 48915360

約数和(自身を除く): 27253000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 337, 674, 1348, 1607, 1685, 2696, 3214, 3370, 6428, 6740, 8035, 12856, 13480, 16070, 32140, 64280, 541559, 1083118, 2166236, 2707795, 4332472, 5415590, 10831180, 21662360]

約数ペア:

[(1, 21662360), (2, 10831180), (4, 5415590), (5, 4332472), (8, 2707795), (10, 2166236), (20, 1083118), (40, 541559), (337, 64280), (674, 32140), (1348, 16070), (1607, 13480), (1685, 12856), (2696, 8035), (3214, 6740), (3370, 6428)]