20791407

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{76159}}^1$

素因数の和:76182

約数の個数: 16

約数和(自身を含む): 34119680

約数和(自身を除く): 13328273

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 76159, 228477, 533113, 990067, 1599339, 2970201, 6930469, 20791407]

約数ペア:

[(1, 20791407), (3, 6930469), (7, 2970201), (13, 1599339), (21, 990067), (39, 533113), (91, 228477), (273, 76159)]