21533475

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{16889}}^1$

素因数の和:16919

約数の個数: 24

約数和(自身を含む): 37698480

約数和(自身を除く): 16165005

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 16889, 50667, 84445, 253335, 287113, 422225, 861339, 1266675, 1435565, 4306695, 7177825, 21533475]

約数ペア:

[(1, 21533475), (3, 7177825), (5, 4306695), (15, 1435565), (17, 1266675), (25, 861339), (51, 422225), (75, 287113), (85, 253335), (255, 84445), (425, 50667), (1275, 16889)]