19147149

素因数分解:

$3^2\times 7^1\times {\mathrm{313}}^1\times {\mathrm{971}}^1$

素因数の和:1297

約数の個数: 24

約数和(自身を含む): 31741632

約数和(自身を除く): 12594483

約数列:

[1, 3, 7, 9, 21, 63, 313, 939, 971, 2191, 2817, 2913, 6573, 6797, 8739, 19719, 20391, 61173, 303923, 911769, 2127461, 2735307, 6382383, 19147149]

約数ペア:

[(1, 19147149), (3, 6382383), (7, 2735307), (9, 2127461), (21, 911769), (63, 303923), (313, 61173), (939, 20391), (971, 19719), (2191, 8739), (2817, 6797), (2913, 6573)]