81618691

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{1103}}^1$

素因数の和:1183

約数の個数: 24

約数和(自身を含む): 105242112

約数和(自身を除く): 23623421

約数列:

[1, 7, 11, 31, 77, 217, 341, 961, 1103, 2387, 6727, 7721, 10571, 12133, 34193, 73997, 84931, 239351, 376123, 1059983, 2632861, 7419881, 11659813, 81618691]

約数ペア:

[(1, 81618691), (7, 11659813), (11, 7419881), (31, 2632861), (77, 1059983), (217, 376123), (341, 239351), (961, 84931), (1103, 73997), (2387, 34193), (6727, 12133), (7721, 10571)]