21506820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{358447}}^1$

素因数の和:358459

約数の個数: 24

約数和(自身を含む): 60219264

約数和(自身を除く): 38712444

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 358447, 716894, 1075341, 1433788, 1792235, 2150682, 3584470, 4301364, 5376705, 7168940, 10753410, 21506820]

約数ペア:

[(1, 21506820), (2, 10753410), (3, 7168940), (4, 5376705), (5, 4301364), (6, 3584470), (10, 2150682), (12, 1792235), (15, 1433788), (20, 1075341), (30, 716894), (60, 358447)]