140721057

素因数分解:

$3^6\times {\mathrm{137}}^1\times {\mathrm{1409}}^1$

素因数の和:1564

約数の個数: 28

約数和(自身を含む): 212675940

約数和(自身を除く): 71954883

約数列:

[1, 3, 9, 27, 81, 137, 243, 411, 729, 1233, 1409, 3699, 4227, 11097, 12681, 33291, 38043, 99873, 114129, 193033, 342387, 579099, 1027161, 1737297, 5211891, 15635673, 46907019, 140721057]

約数ペア:

[(1, 140721057), (3, 46907019), (9, 15635673), (27, 5211891), (81, 1737297), (137, 1027161), (243, 579099), (411, 342387), (729, 193033), (1233, 114129), (1409, 99873), (3699, 38043), (4227, 33291), (11097, 12681)]