19927325

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{311}}^1$

素因数の和:565

約数の個数: 24

約数和(自身を含む): 27158976

約数和(自身を除く): 7231651

約数列:

[1, 5, 11, 25, 55, 233, 275, 311, 1165, 1555, 2563, 3421, 5825, 7775, 12815, 17105, 64075, 72463, 85525, 362315, 797093, 1811575, 3985465, 19927325]

約数ペア:

[(1, 19927325), (5, 3985465), (11, 1811575), (25, 797093), (55, 362315), (233, 85525), (275, 72463), (311, 64075), (1165, 17105), (1555, 12815), (2563, 7775), (3421, 5825)]