17980785

素因数分解:

$3^6\times 5^1\times {\mathrm{4933}}^1$

素因数の和:4956

約数の個数: 28

約数和(自身を含む): 32357172

約数和(自身を除く): 14376387

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3645, 4933, 14799, 24665, 44397, 73995, 133191, 221985, 399573, 665955, 1198719, 1997865, 3596157, 5993595, 17980785]

約数ペア:

[(1, 17980785), (3, 5993595), (5, 3596157), (9, 1997865), (15, 1198719), (27, 665955), (45, 399573), (81, 221985), (135, 133191), (243, 73995), (405, 44397), (729, 24665), (1215, 14799), (3645, 4933)]