28773437

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{211}}^1$

素因数の和:270

約数の個数: 36

約数和(自身を含む): 38572128

約数和(自身を除く): 9798691

約数列:

[1, 7, 11, 23, 49, 77, 121, 161, 211, 253, 539, 847, 1127, 1477, 1771, 2321, 2783, 4853, 5929, 10339, 12397, 16247, 19481, 25531, 33971, 53383, 113729, 136367, 178717, 237797, 373681, 587213, 1251019, 2615767, 4110491, 28773437]

約数ペア:

[(1, 28773437), (7, 4110491), (11, 2615767), (23, 1251019), (49, 587213), (77, 373681), (121, 237797), (161, 178717), (211, 136367), (253, 113729), (539, 53383), (847, 33971), (1127, 25531), (1477, 19481), (1771, 16247), (2321, 12397), (2783, 10339), (4853, 5929)]