531380787

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{3931}}^1$

素因数の和:4139

約数の個数: 32

約数和(自身を含む): 834968064

約数和(自身を除く): 303587277

約数列:

[1, 3, 7, 21, 41, 123, 157, 287, 471, 861, 1099, 3297, 3931, 6437, 11793, 19311, 27517, 45059, 82551, 135177, 161171, 483513, 617167, 1128197, 1851501, 3384591, 4320169, 12960507, 25303847, 75911541, 177126929, 531380787]

約数ペア:

[(1, 531380787), (3, 177126929), (7, 75911541), (21, 25303847), (41, 12960507), (123, 4320169), (157, 3384591), (287, 1851501), (471, 1128197), (861, 617167), (1099, 483513), (3297, 161171), (3931, 135177), (6437, 82551), (11793, 45059), (19311, 27517)]