20909714

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{64937}}^1$

素因数の和:64969

約数の個数: 16

約数和(自身を含む): 37404288

約数和(自身を除く): 16494574

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 64937, 129874, 454559, 909118, 1493551, 2987102, 10454857, 20909714]

約数ペア:

[(1, 20909714), (2, 10454857), (7, 2987102), (14, 1493551), (23, 909118), (46, 454559), (161, 129874), (322, 64937)]