20651306

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{449}}^1$

素因数の和:554

約数の個数: 32

約数和(自身を含む): 35154000

約数和(自身を除く): 14502694

約数列:

[1, 2, 13, 26, 29, 58, 61, 122, 377, 449, 754, 793, 898, 1586, 1769, 3538, 5837, 11674, 13021, 22997, 26042, 27389, 45994, 54778, 169273, 338546, 356057, 712114, 794281, 1588562, 10325653, 20651306]

約数ペア:

[(1, 20651306), (2, 10325653), (13, 1588562), (26, 794281), (29, 712114), (58, 356057), (61, 338546), (122, 169273), (377, 54778), (449, 45994), (754, 27389), (793, 26042), (898, 22997), (1586, 13021), (1769, 11674), (3538, 5837)]