21802280

素因数分解:

$2^3\times 5^1\times {\mathrm{545057}}^1$

素因数の和:545068

約数の個数: 16

約数和(自身を含む): 49055220

約数和(自身を除く): 27252940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 545057, 1090114, 2180228, 2725285, 4360456, 5450570, 10901140, 21802280]

約数ペア:

[(1, 21802280), (2, 10901140), (4, 5450570), (5, 4360456), (8, 2725285), (10, 2180228), (20, 1090114), (40, 545057)]