21345544

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{5641}}^1$

素因数の和:5701

約数の個数: 32

約数和(自身を含む): 44684640

約数和(自身を除く): 23339096

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 86, 88, 172, 344, 473, 946, 1892, 3784, 5641, 11282, 22564, 45128, 62051, 124102, 242563, 248204, 485126, 496408, 970252, 1940504, 2668193, 5336386, 10672772, 21345544]

約数ペア:

[(1, 21345544), (2, 10672772), (4, 5336386), (8, 2668193), (11, 1940504), (22, 970252), (43, 496408), (44, 485126), (86, 248204), (88, 242563), (172, 124102), (344, 62051), (473, 45128), (946, 22564), (1892, 11282), (3784, 5641)]