1388339991

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{121369}}^1$

素因数の和:121447

約数の個数: 24

約数和(自身を含む): 2120576640

約数和(自身を除く): 732236649

約数列:

[1, 3, 9, 31, 41, 93, 123, 279, 369, 1271, 3813, 11439, 121369, 364107, 1092321, 3762439, 4976129, 11287317, 14928387, 33861951, 44785161, 154259999, 462779997, 1388339991]

約数ペア:

[(1, 1388339991), (3, 462779997), (9, 154259999), (31, 44785161), (41, 33861951), (93, 14928387), (123, 11287317), (279, 4976129), (369, 3762439), (1271, 1092321), (3813, 364107), (11439, 121369)]