19481121

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:187

約数の個数: 48

約数和(自身を含む): 32558400

約数和(自身を除く): 13077279

約数列:

[1, 3, 9, 11, 27, 33, 67, 89, 99, 121, 201, 267, 297, 363, 603, 737, 801, 979, 1089, 1809, 2211, 2403, 2937, 3267, 5963, 6633, 8107, 8811, 10769, 17889, 19899, 24321, 26433, 32307, 53667, 65593, 72963, 96921, 161001, 196779, 218889, 290763, 590337, 721523, 1771011, 2164569, 6493707, 19481121]

約数ペア:

[(1, 19481121), (3, 6493707), (9, 2164569), (11, 1771011), (27, 721523), (33, 590337), (67, 290763), (89, 218889), (99, 196779), (121, 161001), (201, 96921), (267, 72963), (297, 65593), (363, 53667), (603, 32307), (737, 26433), (801, 24321), (979, 19899), (1089, 17889), (1809, 10769), (2211, 8811), (2403, 8107), (2937, 6633), (3267, 5963)]