21917852

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 43999200

約数和(自身を除く): 22081348

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 89, 116, 178, 193, 319, 356, 386, 638, 772, 979, 1276, 1958, 2123, 2581, 3916, 4246, 5162, 5597, 8492, 10324, 11194, 17177, 22388, 28391, 34354, 56782, 61567, 68708, 113564, 123134, 188947, 246268, 377894, 498133, 755788, 996266, 1992532, 5479463, 10958926, 21917852]

約数ペア:

[(1, 21917852), (2, 10958926), (4, 5479463), (11, 1992532), (22, 996266), (29, 755788), (44, 498133), (58, 377894), (89, 246268), (116, 188947), (178, 123134), (193, 113564), (319, 68708), (356, 61567), (386, 56782), (638, 34354), (772, 28391), (979, 22388), (1276, 17177), (1958, 11194), (2123, 10324), (2581, 8492), (3916, 5597), (4246, 5162)]