20971174

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{78839}}^1$

素因数の和:78867

約数の個数: 16

約数和(自身を含む): 37843200

約数和(自身を除く): 16872026

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 78839, 157678, 551873, 1103746, 1497941, 2995882, 10485587, 20971174]

約数ペア:

[(1, 20971174), (2, 10485587), (7, 2995882), (14, 1497941), (19, 1103746), (38, 551873), (133, 157678), (266, 78839)]