19649799

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{12919}}^1$

素因数の和:12951

約数の個数: 18

約数和(自身を含む): 30736680

約数和(自身を除く): 11086881

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 12919, 38757, 116271, 167947, 503841, 1511523, 2183311, 6549933, 19649799]

約数ペア:

[(1, 19649799), (3, 6549933), (9, 2183311), (13, 1511523), (39, 503841), (117, 167947), (169, 116271), (507, 38757), (1521, 12919)]