20151261

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{6379}}^1$

素因数の和:6407

約数の個数: 24

約数和(自身を含む): 32512480

約数和(自身を除く): 12361219

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 1053, 3159, 6379, 19137, 57411, 82927, 172233, 248781, 516699, 746343, 1550097, 2239029, 6717087, 20151261]

約数ペア:

[(1, 20151261), (3, 6717087), (9, 2239029), (13, 1550097), (27, 746343), (39, 516699), (81, 248781), (117, 172233), (243, 82927), (351, 57411), (1053, 19137), (3159, 6379)]