21869265

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{132541}}^1$

素因数の和:132560

約数の個数: 16

約数和(自身を含む): 38172096

約数和(自身を除く): 16302831

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 132541, 397623, 662705, 1457951, 1988115, 4373853, 7289755, 21869265]

約数ペア:

[(1, 21869265), (3, 7289755), (5, 4373853), (11, 1988115), (15, 1457951), (33, 662705), (55, 397623), (165, 132541)]