21244517

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{2083}}^1$

素因数の和:2168

約数の個数: 16

約数和(自身を含む): 25608192

約数和(自身を除く): 4363675

約数列:

[1, 7, 31, 47, 217, 329, 1457, 2083, 10199, 14581, 64573, 97901, 452011, 685307, 3034931, 21244517]

約数ペア:

[(1, 21244517), (7, 3034931), (31, 685307), (47, 452011), (217, 97901), (329, 64573), (1457, 14581), (2083, 10199)]