21247336

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{2909}}^1$

素因数の和:3009

約数の個数: 32

約数和(自身を含む): 43999200

約数和(自身を除く): 22751864

約数列:

[1, 2, 4, 8, 11, 22, 44, 83, 88, 166, 332, 664, 913, 1826, 2909, 3652, 5818, 7304, 11636, 23272, 31999, 63998, 127996, 241447, 255992, 482894, 965788, 1931576, 2655917, 5311834, 10623668, 21247336]

約数ペア:

[(1, 21247336), (2, 10623668), (4, 5311834), (8, 2655917), (11, 1931576), (22, 965788), (44, 482894), (83, 255992), (88, 241447), (166, 127996), (332, 63998), (664, 31999), (913, 23272), (1826, 11636), (2909, 7304), (3652, 5818)]