21802855

素因数分解:

$5^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1\times {\mathrm{491}}^1$

素因数の和:686

約数の個数: 16

約数和(自身を含む): 26780544

約数和(自身を除く): 4977689

約数列:

[1, 5, 83, 107, 415, 491, 535, 2455, 8881, 40753, 44405, 52537, 203765, 262685, 4360571, 21802855]

約数ペア:

[(1, 21802855), (5, 4360571), (83, 262685), (107, 203765), (415, 52537), (491, 44405), (535, 40753), (2455, 8881)]