21091042

素因数分解:

$2^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{16927}}^1$

素因数の和:17025

約数の個数: 16

約数和(自身を含む): 36564480

約数和(自身を除く): 15473438

約数列:

[1, 2, 7, 14, 89, 178, 623, 1246, 16927, 33854, 118489, 236978, 1506503, 3013006, 10545521, 21091042]

約数ペア:

[(1, 21091042), (2, 10545521), (7, 3013006), (14, 1506503), (89, 236978), (178, 118489), (623, 33854), (1246, 16927)]