21280066

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{1867}}^1$

素因数の和:2049

約数の個数: 16

約数和(自身を含む): 32951520

約数和(自身を除く): 11671454

約数列:

[1, 2, 41, 82, 139, 278, 1867, 3734, 5699, 11398, 76547, 153094, 259513, 519026, 10640033, 21280066]

約数ペア:

[(1, 21280066), (2, 10640033), (41, 519026), (82, 259513), (139, 153094), (278, 76547), (1867, 11398), (3734, 5699)]