20689065

素因数分解:

$3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{7537}}^1$

素因数の和:7609

約数の個数: 24

約数和(自身を含む): 36453768

約数和(自身を除く): 15764703

約数列:

[1, 3, 5, 9, 15, 45, 61, 183, 305, 549, 915, 2745, 7537, 22611, 37685, 67833, 113055, 339165, 459757, 1379271, 2298785, 4137813, 6896355, 20689065]

約数ペア:

[(1, 20689065), (3, 6896355), (5, 4137813), (9, 2298785), (15, 1379271), (45, 459757), (61, 339165), (183, 113055), (305, 67833), (549, 37685), (915, 22611), (2745, 7537)]