20347605

素因数分解:

$3^5\times 5^1\times {\mathrm{16747}}^1$

素因数の和:16767

約数の個数: 24

約数和(自身を含む): 36577632

約数和(自身を除く): 16230027

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 16747, 50241, 83735, 150723, 251205, 452169, 753615, 1356507, 2260845, 4069521, 6782535, 20347605]

約数ペア:

[(1, 20347605), (3, 6782535), (5, 4069521), (9, 2260845), (15, 1356507), (27, 753615), (45, 452169), (81, 251205), (135, 150723), (243, 83735), (405, 50241), (1215, 16747)]