20120457981

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{60631}}^1$

素因数の和:60841

約数の個数: 32

約数和(自身を含む): 29553491968

約数和(自身を除く): 9433033987

約数列:

[1, 3, 13, 39, 67, 127, 201, 381, 871, 1651, 2613, 4953, 8509, 25527, 60631, 110617, 181893, 331851, 788203, 2364609, 4062277, 7700137, 12186831, 23100411, 52809601, 100101781, 158428803, 300305343, 515909179, 1547727537, 6706819327, 20120457981]

約数ペア:

[(1, 20120457981), (3, 6706819327), (13, 1547727537), (39, 515909179), (67, 300305343), (127, 158428803), (201, 100101781), (381, 52809601), (871, 23100411), (1651, 12186831), (2613, 7700137), (4953, 4062277), (8509, 2364609), (25527, 788203), (60631, 331851), (110617, 181893)]