201899691

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{491}}^1$

素因数の和:672

約数の個数: 48

約数和(自身を含む): 342620928

約数和(自身を除く): 140721237

約数列:

[1, 3, 7, 9, 21, 61, 63, 107, 183, 321, 427, 491, 549, 749, 963, 1281, 1473, 2247, 3437, 3843, 4419, 6527, 6741, 10311, 19581, 29951, 30933, 45689, 52537, 58743, 89853, 137067, 157611, 209657, 269559, 367759, 411201, 472833, 628971, 1103277, 1886913, 3204757, 3309831, 9614271, 22433299, 28842813, 67299897, 201899691]

約数ペア:

[(1, 201899691), (3, 67299897), (7, 28842813), (9, 22433299), (21, 9614271), (61, 3309831), (63, 3204757), (107, 1886913), (183, 1103277), (321, 628971), (427, 472833), (491, 411201), (549, 367759), (749, 269559), (963, 209657), (1281, 157611), (1473, 137067), (2247, 89853), (3437, 58743), (3843, 52537), (4419, 45689), (6527, 30933), (6741, 29951), (10311, 19581)]