21246896

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{120721}}^1$

素因数の和:120740

約数の個数: 20

約数和(自身を含む): 44908584

約数和(自身を除く): 23661688

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 120721, 241442, 482884, 965768, 1327931, 1931536, 2655862, 5311724, 10623448, 21246896]

約数ペア:

[(1, 21246896), (2, 10623448), (4, 5311724), (8, 2655862), (11, 1931536), (16, 1327931), (22, 965768), (44, 482884), (88, 241442), (176, 120721)]