16982217

素因数分解:

$3^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{491}}^1$

素因数の和:571

約数の個数: 40

約数和(自身を含む): 29527872

約数和(自身を除く): 12545655

約数列:

[1, 3, 7, 9, 21, 27, 61, 63, 81, 183, 189, 427, 491, 549, 567, 1281, 1473, 1647, 3437, 3843, 4419, 4941, 10311, 11529, 13257, 29951, 30933, 34587, 39771, 89853, 92799, 209657, 269559, 278397, 628971, 808677, 1886913, 2426031, 5660739, 16982217]

約数ペア:

[(1, 16982217), (3, 5660739), (7, 2426031), (9, 1886913), (21, 808677), (27, 628971), (61, 278397), (63, 269559), (81, 209657), (183, 92799), (189, 89853), (427, 39771), (491, 34587), (549, 30933), (567, 29951), (1281, 13257), (1473, 11529), (1647, 10311), (3437, 4941), (3843, 4419)]