19886820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{331447}}^1$

素因数の和:331459

約数の個数: 24

約数和(自身を含む): 55683264

約数和(自身を除く): 35796444

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 331447, 662894, 994341, 1325788, 1657235, 1988682, 3314470, 3977364, 4971705, 6628940, 9943410, 19886820]

約数ペア:

[(1, 19886820), (2, 9943410), (3, 6628940), (4, 4971705), (5, 3977364), (6, 3314470), (10, 1988682), (12, 1657235), (15, 1325788), (20, 994341), (30, 662894), (60, 331447)]