18966465

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3169}}^1$

素因数の和:3206

約数の個数: 48

約数和(自身を含む): 39561600

約数和(自身を除く): 20595135

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 45, 57, 63, 95, 105, 133, 171, 285, 315, 399, 665, 855, 1197, 1995, 3169, 5985, 9507, 15845, 22183, 28521, 47535, 60211, 66549, 110915, 142605, 180633, 199647, 301055, 332745, 421477, 541899, 903165, 998235, 1264431, 2107385, 2709495, 3793293, 6322155, 18966465]

約数ペア:

[(1, 18966465), (3, 6322155), (5, 3793293), (7, 2709495), (9, 2107385), (15, 1264431), (19, 998235), (21, 903165), (35, 541899), (45, 421477), (57, 332745), (63, 301055), (95, 199647), (105, 180633), (133, 142605), (171, 110915), (285, 66549), (315, 60211), (399, 47535), (665, 28521), (855, 22183), (1197, 15845), (1995, 9507), (3169, 5985)]