20804508

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{15619}}^1$

素因数の和:15666

約数の個数: 36

約数和(自身を含む): 54013960

約数和(自身を除く): 33209452

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 111, 148, 222, 333, 444, 666, 1332, 15619, 31238, 46857, 62476, 93714, 140571, 187428, 281142, 562284, 577903, 1155806, 1733709, 2311612, 3467418, 5201127, 6934836, 10402254, 20804508]

約数ペア:

[(1, 20804508), (2, 10402254), (3, 6934836), (4, 5201127), (6, 3467418), (9, 2311612), (12, 1733709), (18, 1155806), (36, 577903), (37, 562284), (74, 281142), (111, 187428), (148, 140571), (222, 93714), (333, 62476), (444, 46857), (666, 31238), (1332, 15619)]