21242255

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1\times {\mathrm{577}}^1$

素因数の和:818

約数の個数: 16

約数和(自身を含む): 26356800

約数和(自身を除く): 5114545

約数列:

[1, 5, 37, 185, 199, 577, 995, 2885, 7363, 21349, 36815, 106745, 114823, 574115, 4248451, 21242255]

約数ペア:

[(1, 21242255), (5, 4248451), (37, 574115), (185, 114823), (199, 106745), (577, 36815), (995, 21349), (2885, 7363)]