21053210

素因数分解:

$2^1\times 5^1\times {\mathrm{911}}^1\times {\mathrm{2311}}^1$

素因数の和:3229

約数の個数: 16

約数和(自身を含む): 37953792

約数和(自身を除く): 16900582

約数列:

[1, 2, 5, 10, 911, 1822, 2311, 4555, 4622, 9110, 11555, 23110, 2105321, 4210642, 10526605, 21053210]

約数ペア:

[(1, 21053210), (2, 10526605), (5, 4210642), (10, 2105321), (911, 23110), (1822, 11555), (2311, 9110), (4555, 4622)]