215264565

素因数分解:

$3^2\times 5^1\times {\mathrm{661}}^1\times {\mathrm{7237}}^1$

素因数の和:7909

約数の個数: 24

約数和(自身を含む): 373741368

約数和(自身を除く): 158476803

約数列:

[1, 3, 5, 9, 15, 45, 661, 1983, 3305, 5949, 7237, 9915, 21711, 29745, 36185, 65133, 108555, 325665, 4783657, 14350971, 23918285, 43052913, 71754855, 215264565]

約数ペア:

[(1, 215264565), (3, 71754855), (5, 43052913), (9, 23918285), (15, 14350971), (45, 4783657), (661, 325665), (1983, 108555), (3305, 65133), (5949, 36185), (7237, 29745), (9915, 21711)]