19984112

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{73471}}^1$

素因数の和:73496

約数の個数: 20

約数和(自身を含む): 40997376

約数和(自身を除く): 21013264

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 73471, 146942, 293884, 587768, 1175536, 1249007, 2498014, 4996028, 9992056, 19984112]

約数ペア:

[(1, 19984112), (2, 9992056), (4, 4996028), (8, 2498014), (16, 1249007), (17, 1175536), (34, 587768), (68, 293884), (136, 146942), (272, 73471)]