20945309

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{16001}}^1$

素因数の和:16036

約数の個数: 16

約数和(自身を含む): 27651456

約数和(自身を除く): 6706147

約数列:

[1, 7, 11, 17, 77, 119, 187, 1309, 16001, 112007, 176011, 272017, 1232077, 1904119, 2992187, 20945309]

約数ペア:

[(1, 20945309), (7, 2992187), (11, 1904119), (17, 1232077), (77, 272017), (119, 176011), (187, 112007), (1309, 16001)]