19880614

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{5501}}^1$

素因数の和:5655

約数の個数: 16

約数和(自身を含む): 32351760

約数和(自身を除く): 12471146

約数列:

[1, 2, 13, 26, 139, 278, 1807, 3614, 5501, 11002, 71513, 143026, 764639, 1529278, 9940307, 19880614]

約数ペア:

[(1, 19880614), (2, 9940307), (13, 1529278), (26, 764639), (139, 143026), (278, 71513), (1807, 11002), (3614, 5501)]