208092017

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 255688704

約数和(自身を除く): 47596687

約数列:

[1, 7, 23, 67, 101, 161, 191, 469, 707, 1337, 1541, 2323, 4393, 6767, 10787, 12797, 16261, 19291, 30751, 47369, 89579, 135037, 155641, 294331, 443693, 1089487, 1292497, 2060317, 3105851, 9047479, 29727431, 208092017]

約数ペア:

[(1, 208092017), (7, 29727431), (23, 9047479), (67, 3105851), (101, 2060317), (161, 1292497), (191, 1089487), (469, 443693), (707, 294331), (1337, 155641), (1541, 135037), (2323, 89579), (4393, 47369), (6767, 30751), (10787, 19291), (12797, 16261)]