21168990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{235211}}^1$

素因数の和:235224

約数の個数: 24

約数和(自身を含む): 55039608

約数和(自身を除く): 33870618

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 235211, 470422, 705633, 1176055, 1411266, 2116899, 2352110, 3528165, 4233798, 7056330, 10584495, 21168990]

約数ペア:

[(1, 21168990), (2, 10584495), (3, 7056330), (5, 4233798), (6, 3528165), (9, 2352110), (10, 2116899), (15, 1411266), (18, 1176055), (30, 705633), (45, 470422), (90, 235211)]