20899291245

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{199040869}}^1$

素因数の和:199040884

約数の個数: 16

約数和(自身を含む): 38215847040

約数和(自身を除く): 17316555795

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 199040869, 597122607, 995204345, 1393286083, 2985613035, 4179858249, 6966430415, 20899291245]

約数ペア:

[(1, 20899291245), (3, 6966430415), (5, 4179858249), (7, 2985613035), (15, 1393286083), (21, 995204345), (35, 597122607), (105, 199040869)]