21704061

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:297

約数の個数: 32

約数和(自身を含む): 32071680

約数和(自身を除く): 10367619

約数列:

[1, 3, 19, 31, 57, 71, 93, 173, 213, 519, 589, 1349, 1767, 2201, 3287, 4047, 5363, 6603, 9861, 12283, 16089, 36849, 41819, 101897, 125457, 233377, 305691, 380773, 700131, 1142319, 7234687, 21704061]

約数ペア:

[(1, 21704061), (3, 7234687), (19, 1142319), (31, 700131), (57, 380773), (71, 305691), (93, 233377), (173, 125457), (213, 101897), (519, 41819), (589, 36849), (1349, 16089), (1767, 12283), (2201, 9861), (3287, 6603), (4047, 5363)]