17970337

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 23869440

約数和(自身を除く): 5899103

約数列:

[1, 7, 11, 23, 73, 77, 139, 161, 253, 511, 803, 973, 1529, 1679, 1771, 3197, 5621, 10147, 10703, 11753, 18469, 22379, 35167, 71029, 111617, 129283, 233381, 246169, 781319, 1633667, 2567191, 17970337]

約数ペア:

[(1, 17970337), (7, 2567191), (11, 1633667), (23, 781319), (73, 246169), (77, 233381), (139, 129283), (161, 111617), (253, 71029), (511, 35167), (803, 22379), (973, 18469), (1529, 11753), (1679, 10703), (1771, 10147), (3197, 5621)]