19274787

素因数分解:

$3^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{857}}^1$

素因数の和:897

約数の個数: 48

約数和(自身を含む): 35212320

約数和(自身を除く): 15937533

約数列:

[1, 3, 7, 9, 17, 21, 27, 49, 51, 63, 119, 147, 153, 189, 357, 441, 459, 833, 857, 1071, 1323, 2499, 2571, 3213, 5999, 7497, 7713, 14569, 17997, 22491, 23139, 41993, 43707, 53991, 101983, 125979, 131121, 161973, 305949, 377937, 393363, 713881, 917847, 1133811, 2141643, 2753541, 6424929, 19274787]

約数ペア:

[(1, 19274787), (3, 6424929), (7, 2753541), (9, 2141643), (17, 1133811), (21, 917847), (27, 713881), (49, 393363), (51, 377937), (63, 305949), (119, 161973), (147, 131121), (153, 125979), (189, 101983), (357, 53991), (441, 43707), (459, 41993), (833, 23139), (857, 22491), (1071, 17997), (1323, 14569), (2499, 7713), (2571, 7497), (3213, 5999)]