20438282

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{1987}}^1$

素因数の和:2165

約数の個数: 16

約数和(自身を含む): 31728480

約数和(自身を除く): 11290198

約数列:

[1, 2, 37, 74, 139, 278, 1987, 3974, 5143, 10286, 73519, 147038, 276193, 552386, 10219141, 20438282]

約数ペア:

[(1, 20438282), (2, 10219141), (37, 552386), (74, 276193), (139, 147038), (278, 73519), (1987, 10286), (3974, 5143)]