20751471

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{6569}}^1$

素因数の和:6597

約数の個数: 24

約数和(自身を含む): 33480720

約数和(自身を除く): 12729249

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 1053, 3159, 6569, 19707, 59121, 85397, 177363, 256191, 532089, 768573, 1596267, 2305719, 6917157, 20751471]

約数ペア:

[(1, 20751471), (3, 6917157), (9, 2305719), (13, 1596267), (27, 768573), (39, 532089), (81, 256191), (117, 177363), (243, 85397), (351, 59121), (1053, 19707), (3159, 6569)]