21352040

素因数分解:

$2^3\times 5^1\times {\mathrm{533801}}^1$

素因数の和:533812

約数の個数: 16

約数和(自身を含む): 48042180

約数和(自身を除く): 26690140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 533801, 1067602, 2135204, 2669005, 4270408, 5338010, 10676020, 21352040]

約数ペア:

[(1, 21352040), (2, 10676020), (4, 5338010), (5, 4270408), (8, 2669005), (10, 2135204), (20, 1067602), (40, 533801)]