209711541

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{4721}}^1$

素因数の和:4821

約数の個数: 32

約数和(自身を含む): 323664768

約数和(自身を除く): 113953227

約数列:

[1, 3, 13, 17, 39, 51, 67, 201, 221, 663, 871, 1139, 2613, 3417, 4721, 14163, 14807, 44421, 61373, 80257, 184119, 240771, 316307, 948921, 1043341, 3130023, 4111991, 5377219, 12335973, 16131657, 69903847, 209711541]

約数ペア:

[(1, 209711541), (3, 69903847), (13, 16131657), (17, 12335973), (39, 5377219), (51, 4111991), (67, 3130023), (201, 1043341), (221, 948921), (663, 316307), (871, 240771), (1139, 184119), (2613, 80257), (3417, 61373), (4721, 44421), (14163, 14807)]