19116531

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 33196800

約数和(自身を除く): 14080269

約数列:

[1, 3, 7, 9, 21, 37, 59, 63, 111, 139, 177, 259, 333, 413, 417, 531, 777, 973, 1239, 1251, 2183, 2331, 2919, 3717, 5143, 6549, 8201, 8757, 15281, 15429, 19647, 24603, 36001, 45843, 46287, 57407, 73809, 108003, 137529, 172221, 303437, 324009, 516663, 910311, 2124059, 2730933, 6372177, 19116531]

約数ペア:

[(1, 19116531), (3, 6372177), (7, 2730933), (9, 2124059), (21, 910311), (37, 516663), (59, 324009), (63, 303437), (111, 172221), (139, 137529), (177, 108003), (259, 73809), (333, 57407), (413, 46287), (417, 45843), (531, 36001), (777, 24603), (973, 19647), (1239, 15429), (1251, 15281), (2183, 8757), (2331, 8201), (2919, 6549), (3717, 5143)]