20650545

素因数分解:

$3^4\times 5^1\times {\mathrm{50989}}^1$

素因数の和:51006

約数の個数: 20

約数和(自身を含む): 37018740

約数和(自身を除く): 16368195

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 50989, 152967, 254945, 458901, 764835, 1376703, 2294505, 4130109, 6883515, 20650545]

約数ペア:

[(1, 20650545), (3, 6883515), (5, 4130109), (9, 2294505), (15, 1376703), (27, 764835), (45, 458901), (81, 254945), (135, 152967), (405, 50989)]