20853189

素因数分解:

$3^2\times 7^1\times {\mathrm{191}}^1\times {\mathrm{1733}}^1$

素因数の和:1937

約数の個数: 24

約数和(自身を含む): 34624512

約数和(自身を除く): 13771323

約数列:

[1, 3, 7, 9, 21, 63, 191, 573, 1337, 1719, 1733, 4011, 5199, 12033, 12131, 15597, 36393, 109179, 331003, 993009, 2317021, 2979027, 6951063, 20853189]

約数ペア:

[(1, 20853189), (3, 6951063), (7, 2979027), (9, 2317021), (21, 993009), (63, 331003), (191, 109179), (573, 36393), (1337, 15597), (1719, 12131), (1733, 12033), (4011, 5199)]