21420488

素因数分解:

$2^3\times {\mathrm{223}}^1\times {\mathrm{12007}}^1$

素因数の和:12236

約数の個数: 16

約数和(自身を含む): 40346880

約数和(自身を除く): 18926392

約数列:

[1, 2, 4, 8, 223, 446, 892, 1784, 12007, 24014, 48028, 96056, 2677561, 5355122, 10710244, 21420488]

約数ペア:

[(1, 21420488), (2, 10710244), (4, 5355122), (8, 2677561), (223, 96056), (446, 48028), (892, 24014), (1784, 12007)]