20652401

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{659}}^1$

素因数の和:725

約数の個数: 24

約数和(自身を含む): 26685120

約数和(自身を除く): 6032719

約数列:

[1, 7, 11, 37, 77, 121, 259, 407, 659, 847, 2849, 4477, 4613, 7249, 24383, 31339, 50743, 79739, 170681, 268213, 558173, 1877491, 2950343, 20652401]

約数ペア:

[(1, 20652401), (7, 2950343), (11, 1877491), (37, 558173), (77, 268213), (121, 170681), (259, 79739), (407, 50743), (659, 31339), (847, 24383), (2849, 7249), (4477, 4613)]