20766105

素因数分解:

$3^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1523}}^1$

素因数の和:1638

約数の個数: 32

約数和(自身を含む): 37307520

約数和(自身を除く): 16541415

約数列:

[1, 3, 5, 9, 15, 27, 45, 101, 135, 303, 505, 909, 1515, 1523, 2727, 4545, 4569, 7615, 13635, 13707, 22845, 41121, 68535, 153823, 205605, 461469, 769115, 1384407, 2307345, 4153221, 6922035, 20766105]

約数ペア:

[(1, 20766105), (3, 6922035), (5, 4153221), (9, 2307345), (15, 1384407), (27, 769115), (45, 461469), (101, 205605), (135, 153823), (303, 68535), (505, 41121), (909, 22845), (1515, 13707), (1523, 13635), (2727, 7615), (4545, 4569)]