20557866

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{13229}}^1$

素因数の和:13278

約数の個数: 32

約数和(自身を含む): 48263040

約数和(自身を除く): 27705174

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 74, 111, 222, 259, 518, 777, 1554, 13229, 26458, 39687, 79374, 92603, 185206, 277809, 489473, 555618, 978946, 1468419, 2936838, 3426311, 6852622, 10278933, 20557866]

約数ペア:

[(1, 20557866), (2, 10278933), (3, 6852622), (6, 3426311), (7, 2936838), (14, 1468419), (21, 978946), (37, 555618), (42, 489473), (74, 277809), (111, 185206), (222, 92603), (259, 79374), (518, 39687), (777, 26458), (1554, 13229)]