20748465

素因数分解:

$3^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{2389}}^1$

素因数の和:2593

約数の個数: 24

約数和(自身を含む): 36165480

約数和(自身を除く): 15417015

約数列:

[1, 3, 5, 9, 15, 45, 193, 579, 965, 1737, 2389, 2895, 7167, 8685, 11945, 21501, 35835, 107505, 461077, 1383231, 2305385, 4149693, 6916155, 20748465]

約数ペア:

[(1, 20748465), (3, 6916155), (5, 4149693), (9, 2305385), (15, 1383231), (45, 461077), (193, 107505), (579, 35835), (965, 21501), (1737, 11945), (2389, 8685), (2895, 7167)]