1247970381

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{727}}^1\times {\mathrm{1901}}^1$

素因数の和:2681

約数の個数: 32

約数和(自身を含む): 1949595648

約数和(自身を除く): 701625267

約数列:

[1, 3, 7, 21, 43, 129, 301, 727, 903, 1901, 2181, 5089, 5703, 13307, 15267, 31261, 39921, 81743, 93783, 218827, 245229, 572201, 656481, 1382027, 1716603, 4146081, 9674189, 29022567, 59427161, 178281483, 415990127, 1247970381]

約数ペア:

[(1, 1247970381), (3, 415990127), (7, 178281483), (21, 59427161), (43, 29022567), (129, 9674189), (301, 4146081), (727, 1716603), (903, 1382027), (1901, 656481), (2181, 572201), (5089, 245229), (5703, 218827), (13307, 93783), (15267, 81743), (31261, 39921)]