20210085

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{773}}^1$

素因数の和:874

約数の個数: 48

約数和(自身を含む): 40569984

約数和(自身を除く): 20359899

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 83, 105, 249, 315, 415, 581, 747, 773, 1245, 1743, 2319, 2905, 3735, 3865, 5229, 5411, 6957, 8715, 11595, 16233, 26145, 27055, 34785, 48699, 64159, 81165, 192477, 243495, 320795, 449113, 577431, 962385, 1347339, 2245565, 2887155, 4042017, 6736695, 20210085]

約数ペア:

[(1, 20210085), (3, 6736695), (5, 4042017), (7, 2887155), (9, 2245565), (15, 1347339), (21, 962385), (35, 577431), (45, 449113), (63, 320795), (83, 243495), (105, 192477), (249, 81165), (315, 64159), (415, 48699), (581, 34785), (747, 27055), (773, 26145), (1245, 16233), (1743, 11595), (2319, 8715), (2905, 6957), (3735, 5411), (3865, 5229)]