20398906

素因数分解:

$2^1\times {\mathrm{11}}^3\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:211

約数の個数: 32

約数和(自身を含む): 34433280

約数和(自身を除く): 14034374

約数列:

[1, 2, 11, 22, 79, 97, 121, 158, 194, 242, 869, 1067, 1331, 1738, 2134, 2662, 7663, 9559, 11737, 15326, 19118, 23474, 84293, 105149, 129107, 168586, 210298, 258214, 927223, 1854446, 10199453, 20398906]

約数ペア:

[(1, 20398906), (2, 10199453), (11, 1854446), (22, 927223), (79, 258214), (97, 210298), (121, 168586), (158, 129107), (194, 105149), (242, 84293), (869, 23474), (1067, 19118), (1331, 15326), (1738, 11737), (2134, 9559), (2662, 7663)]