19966149

素因数分解:

$3^3\times 7^1\times {\mathrm{149}}^1\times {\mathrm{709}}^1$

素因数の和:874

約数の個数: 32

約数和(自身を含む): 34080000

約数和(自身を除く): 14113851

約数列:

[1, 3, 7, 9, 21, 27, 63, 149, 189, 447, 709, 1043, 1341, 2127, 3129, 4023, 4963, 6381, 9387, 14889, 19143, 28161, 44667, 105641, 134001, 316923, 739487, 950769, 2218461, 2852307, 6655383, 19966149]

約数ペア:

[(1, 19966149), (3, 6655383), (7, 2852307), (9, 2218461), (21, 950769), (27, 739487), (63, 316923), (149, 134001), (189, 105641), (447, 44667), (709, 28161), (1043, 19143), (1341, 14889), (2127, 9387), (3129, 6381), (4023, 4963)]