644609714

素因数分解:

$2^1\times 7^1\times {\mathrm{2221}}^1\times {\mathrm{20731}}^1$

素因数の和:22961

約数の個数: 16

約数和(自身を含む): 1105596096

約数和(自身を除く): 460986382

約数列:

[1, 2, 7, 14, 2221, 4442, 15547, 20731, 31094, 41462, 145117, 290234, 46043551, 92087102, 322304857, 644609714]

約数ペア:

[(1, 644609714), (2, 322304857), (7, 92087102), (14, 46043551), (2221, 290234), (4442, 145117), (15547, 41462), (20731, 31094)]