21440408

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{4597}}^1$

素因数の和:4667

約数の個数: 32

約数和(自身を含む): 44692560

約数和(自身を除く): 23252152

約数列:

[1, 2, 4, 8, 11, 22, 44, 53, 88, 106, 212, 424, 583, 1166, 2332, 4597, 4664, 9194, 18388, 36776, 50567, 101134, 202268, 243641, 404536, 487282, 974564, 1949128, 2680051, 5360102, 10720204, 21440408]

約数ペア:

[(1, 21440408), (2, 10720204), (4, 5360102), (8, 2680051), (11, 1949128), (22, 974564), (44, 487282), (53, 404536), (88, 243641), (106, 202268), (212, 101134), (424, 50567), (583, 36776), (1166, 18388), (2332, 9194), (4597, 4664)]