21241912

素因数分解:

$2^3\times {\mathrm{131}}^1\times {\mathrm{20269}}^1$

素因数の和:20406

約数の個数: 16

約数和(自身を含む): 40134600

約数和(自身を除く): 18892688

約数列:

[1, 2, 4, 8, 131, 262, 524, 1048, 20269, 40538, 81076, 162152, 2655239, 5310478, 10620956, 21241912]

約数ペア:

[(1, 21241912), (2, 10620956), (4, 5310478), (8, 2655239), (131, 162152), (262, 81076), (524, 40538), (1048, 20269)]