21266738

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{8353}}^1$

素因数の和:8441

約数の個数: 16

約数和(自身を含む): 34084320

約数和(自身を除く): 12817582

約数列:

[1, 2, 19, 38, 67, 134, 1273, 2546, 8353, 16706, 158707, 317414, 559651, 1119302, 10633369, 21266738]

約数ペア:

[(1, 21266738), (2, 10633369), (19, 1119302), (38, 559651), (67, 317414), (134, 158707), (1273, 16706), (2546, 8353)]