20628242

素因数分解:

$2^1\times {\mathrm{17}}^2\times {\mathrm{89}}^1\times {\mathrm{401}}^1$

素因数の和:526

約数の個数: 24

約数和(自身を含む): 33321780

約数和(自身を除く): 12693538

約数列:

[1, 2, 17, 34, 89, 178, 289, 401, 578, 802, 1513, 3026, 6817, 13634, 25721, 35689, 51442, 71378, 115889, 231778, 606713, 1213426, 10314121, 20628242]

約数ペア:

[(1, 20628242), (2, 10314121), (17, 1213426), (34, 606713), (89, 231778), (178, 115889), (289, 71378), (401, 51442), (578, 35689), (802, 25721), (1513, 13634), (3026, 6817)]