19815651

素因数分解:

$3^3\times {\mathrm{19}}^3\times {\mathrm{107}}^1$

素因数の和:173

約数の個数: 32

約数和(自身を含む): 31276800

約数和(自身を除く): 11461149

約数列:

[1, 3, 9, 19, 27, 57, 107, 171, 321, 361, 513, 963, 1083, 2033, 2889, 3249, 6099, 6859, 9747, 18297, 20577, 38627, 54891, 61731, 115881, 185193, 347643, 733913, 1042929, 2201739, 6605217, 19815651]

約数ペア:

[(1, 19815651), (3, 6605217), (9, 2201739), (19, 1042929), (27, 733913), (57, 347643), (107, 185193), (171, 115881), (321, 61731), (361, 54891), (513, 38627), (963, 20577), (1083, 18297), (2033, 9747), (2889, 6859), (3249, 6099)]