21344270

素因数分解:

$2^1\times 5^1\times {\mathrm{167}}^1\times {\mathrm{12781}}^1$

素因数の和:12955

約数の個数: 16

約数和(自身を含む): 38652768

約数和(自身を除く): 17308498

約数列:

[1, 2, 5, 10, 167, 334, 835, 1670, 12781, 25562, 63905, 127810, 2134427, 4268854, 10672135, 21344270]

約数ペア:

[(1, 21344270), (2, 10672135), (5, 4268854), (10, 2134427), (167, 127810), (334, 63905), (835, 25562), (1670, 12781)]