17780042

素因数分解:

$2^1\times 7^2\times {\mathrm{397}}^1\times {\mathrm{457}}^1$

素因数の和:870

約数の個数: 24

約数和(自身を含む): 31170564

約数和(自身を除く): 13390522

約数列:

[1, 2, 7, 14, 49, 98, 397, 457, 794, 914, 2779, 3199, 5558, 6398, 19453, 22393, 38906, 44786, 181429, 362858, 1270003, 2540006, 8890021, 17780042]

約数ペア:

[(1, 17780042), (2, 8890021), (7, 2540006), (14, 1270003), (49, 362858), (98, 181429), (397, 44786), (457, 38906), (794, 22393), (914, 19453), (2779, 6398), (3199, 5558)]