16668909

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{10831}}^1$

素因数の和:10862

約数の個数: 20

約数和(自身を含む): 26213440

約数和(自身を除く): 9544531

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 10831, 32493, 97479, 205789, 292437, 617367, 877311, 1852101, 5556303, 16668909]

約数ペア:

[(1, 16668909), (3, 5556303), (9, 1852101), (19, 877311), (27, 617367), (57, 292437), (81, 205789), (171, 97479), (513, 32493), (1539, 10831)]