21517034

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139721}}^1$

素因数の和:139741

約数の個数: 16

約数和(自身を含む): 40239936

約数和(自身を除く): 18722902

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 139721, 279442, 978047, 1536931, 1956094, 3073862, 10758517, 21517034]

約数ペア:

[(1, 21517034), (2, 10758517), (7, 3073862), (11, 1956094), (14, 1536931), (22, 978047), (77, 279442), (154, 139721)]