19646572

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 39463200

約数和(自身を除く): 19816628

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 89, 116, 173, 178, 319, 346, 356, 638, 692, 979, 1276, 1903, 1958, 2581, 3806, 3916, 5017, 5162, 7612, 10034, 10324, 15397, 20068, 28391, 30794, 55187, 56782, 61588, 110374, 113564, 169367, 220748, 338734, 446513, 677468, 893026, 1786052, 4911643, 9823286, 19646572]

約数ペア:

[(1, 19646572), (2, 9823286), (4, 4911643), (11, 1786052), (22, 893026), (29, 677468), (44, 446513), (58, 338734), (89, 220748), (116, 169367), (173, 113564), (178, 110374), (319, 61588), (346, 56782), (356, 55187), (638, 30794), (692, 28391), (979, 20068), (1276, 15397), (1903, 10324), (1958, 10034), (2581, 7612), (3806, 5162), (3916, 5017)]