20904186

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1$

素因数の和:279

約数の個数: 64

約数和(自身を含む): 47278080

約数和(自身を除く): 26373894

約数列:

[1, 2, 3, 6, 17, 29, 34, 37, 51, 58, 74, 87, 102, 111, 174, 191, 222, 382, 493, 573, 629, 986, 1073, 1146, 1258, 1479, 1887, 2146, 2958, 3219, 3247, 3774, 5539, 6438, 6494, 7067, 9741, 11078, 14134, 16617, 18241, 19482, 21201, 33234, 36482, 42402, 54723, 94163, 109446, 120139, 188326, 204943, 240278, 282489, 360417, 409886, 564978, 614829, 720834, 1229658, 3484031, 6968062, 10452093, 20904186]

約数ペア:

[(1, 20904186), (2, 10452093), (3, 6968062), (6, 3484031), (17, 1229658), (29, 720834), (34, 614829), (37, 564978), (51, 409886), (58, 360417), (74, 282489), (87, 240278), (102, 204943), (111, 188326), (174, 120139), (191, 109446), (222, 94163), (382, 54723), (493, 42402), (573, 36482), (629, 33234), (986, 21201), (1073, 19482), (1146, 18241), (1258, 16617), (1479, 14134), (1887, 11078), (2146, 9741), (2958, 7067), (3219, 6494), (3247, 6438), (3774, 5539)]