19994319

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{619}}^1$

素因数の和:759

約数の個数: 24

約数和(自身を含む): 30015440

約数和(自身を除く): 10021121

約数列:

[1, 3, 9, 37, 97, 111, 291, 333, 619, 873, 1857, 3589, 5571, 10767, 22903, 32301, 60043, 68709, 180129, 206127, 540387, 2221591, 6664773, 19994319]

約数ペア:

[(1, 19994319), (3, 6664773), (9, 2221591), (37, 540387), (97, 206127), (111, 180129), (291, 68709), (333, 60043), (619, 32301), (873, 22903), (1857, 10767), (3589, 5571)]