19214091

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:353

約数の個数: 40

約数和(自身を含む): 31467744

約数和(自身を除く): 12253653

約数列:

[1, 3, 9, 13, 27, 39, 71, 81, 117, 213, 257, 351, 639, 771, 923, 1053, 1917, 2313, 2769, 3341, 5751, 6939, 8307, 10023, 18247, 20817, 24921, 30069, 54741, 74763, 90207, 164223, 237211, 270621, 492669, 711633, 1478007, 2134899, 6404697, 19214091]

約数ペア:

[(1, 19214091), (3, 6404697), (9, 2134899), (13, 1478007), (27, 711633), (39, 492669), (71, 270621), (81, 237211), (117, 164223), (213, 90207), (257, 74763), (351, 54741), (639, 30069), (771, 24921), (923, 20817), (1053, 18247), (1917, 10023), (2313, 8307), (2769, 6939), (3341, 5751)]