28957621

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1$

素因数の和:321

約数の個数: 32

約数和(自身を含む): 38320128

約数和(自身を除く): 9362507

約数列:

[1, 7, 11, 23, 77, 83, 161, 197, 253, 581, 913, 1379, 1771, 1909, 2167, 4531, 6391, 13363, 15169, 16351, 20999, 31717, 49841, 114457, 146993, 179861, 348887, 376073, 1259027, 2632511, 4136803, 28957621]

約数ペア:

[(1, 28957621), (7, 4136803), (11, 2632511), (23, 1259027), (77, 376073), (83, 348887), (161, 179861), (197, 146993), (253, 114457), (581, 49841), (913, 31717), (1379, 20999), (1771, 16351), (1909, 15169), (2167, 13363), (4531, 6391)]