21358140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{355969}}^1$

素因数の和:355981

約数の個数: 24

約数和(自身を含む): 59802960

約数和(自身を除く): 38444820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 355969, 711938, 1067907, 1423876, 1779845, 2135814, 3559690, 4271628, 5339535, 7119380, 10679070, 21358140]

約数ペア:

[(1, 21358140), (2, 10679070), (3, 7119380), (4, 5339535), (5, 4271628), (6, 3559690), (10, 2135814), (12, 1779845), (15, 1423876), (20, 1067907), (30, 711938), (60, 355969)]