20943027

素因数分解:

$3^2\times 7^1\times {\mathrm{401}}^1\times {\mathrm{829}}^1$

素因数の和:1243

約数の個数: 24

約数和(自身を含む): 34700640

約数和(自身を除く): 13757613

約数列:

[1, 3, 7, 9, 21, 63, 401, 829, 1203, 2487, 2807, 3609, 5803, 7461, 8421, 17409, 25263, 52227, 332429, 997287, 2327003, 2991861, 6981009, 20943027]

約数ペア:

[(1, 20943027), (3, 6981009), (7, 2991861), (9, 2327003), (21, 997287), (63, 332429), (401, 52227), (829, 25263), (1203, 17409), (2487, 8421), (2807, 7461), (3609, 5803)]