20086785

素因数分解:

$3^4\times 5^1\times {\mathrm{49597}}^1$

素因数の和:49614

約数の個数: 20

約数和(自身を含む): 36008148

約数和(自身を除く): 15921363

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 49597, 148791, 247985, 446373, 743955, 1339119, 2231865, 4017357, 6695595, 20086785]

約数ペア:

[(1, 20086785), (3, 6695595), (5, 4017357), (9, 2231865), (15, 1339119), (27, 743955), (45, 446373), (81, 247985), (135, 148791), (405, 49597)]