209008294

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{220939}}^1$

素因数の和:220995

約数の個数: 16

約数和(自身を含む): 349968960

約数和(自身を除く): 140960666

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 220939, 441878, 2430329, 4860658, 9500377, 19000754, 104504147, 209008294]

約数ペア:

[(1, 209008294), (2, 104504147), (11, 19000754), (22, 9500377), (43, 4860658), (86, 2430329), (473, 441878), (946, 220939)]