21107178

素因数分解:

$2^1\times 3^2\times {\mathrm{443}}^1\times {\mathrm{2647}}^1$

素因数の和:3098

約数の個数: 24

約数和(自身を含む): 45852768

約数和(自身を除く): 24745590

約数列:

[1, 2, 3, 6, 9, 18, 443, 886, 1329, 2647, 2658, 3987, 5294, 7941, 7974, 15882, 23823, 47646, 1172621, 2345242, 3517863, 7035726, 10553589, 21107178]

約数ペア:

[(1, 21107178), (2, 10553589), (3, 7035726), (6, 3517863), (9, 2345242), (18, 1172621), (443, 47646), (886, 23823), (1329, 15882), (2647, 7974), (2658, 7941), (3987, 5294)]