21129214

素因数分解:

$2^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1\times {\mathrm{941}}^1$

素因数の和:1155

約数の個数: 16

約数和(自身を含む): 32329440

約数和(自身を除く): 11200226

約数列:

[1, 2, 103, 109, 206, 218, 941, 1882, 11227, 22454, 96923, 102569, 193846, 205138, 10564607, 21129214]

約数ペア:

[(1, 21129214), (2, 10564607), (103, 205138), (109, 193846), (206, 102569), (218, 96923), (941, 22454), (1882, 11227)]