21115048

素因数分解:

$2^3\times {\mathrm{353}}^1\times {\mathrm{7477}}^1$

素因数の和:7836

約数の個数: 16

約数和(自身を含む): 39708180

約数和(自身を除く): 18593132

約数列:

[1, 2, 4, 8, 353, 706, 1412, 2824, 7477, 14954, 29908, 59816, 2639381, 5278762, 10557524, 21115048]

約数ペア:

[(1, 21115048), (2, 10557524), (4, 5278762), (8, 2639381), (353, 59816), (706, 29908), (1412, 14954), (2824, 7477)]