20402914

素因数分解:

$2^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{3413}}^1$

素因数の和:3490

約数の個数: 24

約数和(自身を含む): 36195228

約数和(自身を除く): 15792314

約数列:

[1, 2, 7, 14, 49, 61, 98, 122, 427, 854, 2989, 3413, 5978, 6826, 23891, 47782, 167237, 208193, 334474, 416386, 1457351, 2914702, 10201457, 20402914]

約数ペア:

[(1, 20402914), (2, 10201457), (7, 2914702), (14, 1457351), (49, 416386), (61, 334474), (98, 208193), (122, 167237), (427, 47782), (854, 23891), (2989, 6826), (3413, 5978)]