27980018

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{739}}^1\times {\mathrm{1721}}^1$

素因数の和:2473

約数の個数: 16

約数和(自身を含む): 45874080

約数和(自身を除く): 17894062

約数列:

[1, 2, 11, 22, 739, 1478, 1721, 3442, 8129, 16258, 18931, 37862, 1271819, 2543638, 13990009, 27980018]

約数ペア:

[(1, 27980018), (2, 13990009), (11, 2543638), (22, 1271819), (739, 37862), (1478, 18931), (1721, 16258), (3442, 8129)]