19759707

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{331}}^1$

素因数の和:421

約数の個数: 40

約数和(自身を含む): 32780352

約数和(自身を除く): 13020645

約数列:

[1, 3, 9, 11, 27, 33, 67, 81, 99, 201, 297, 331, 603, 737, 891, 993, 1809, 2211, 2979, 3641, 5427, 6633, 8937, 10923, 19899, 22177, 26811, 32769, 59697, 66531, 98307, 199593, 243947, 294921, 598779, 731841, 1796337, 2195523, 6586569, 19759707]

約数ペア:

[(1, 19759707), (3, 6586569), (9, 2195523), (11, 1796337), (27, 731841), (33, 598779), (67, 294921), (81, 243947), (99, 199593), (201, 98307), (297, 66531), (331, 59697), (603, 32769), (737, 26811), (891, 22177), (993, 19899), (1809, 10923), (2211, 8937), (2979, 6633), (3641, 5427)]