21841589

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{107}}^1\times {\mathrm{241}}^1$

素因数の和:377

約数の個数: 24

約数和(自身を含む): 27808704

約数和(自身を除く): 5967115

約数列:

[1, 7, 11, 77, 107, 121, 241, 749, 847, 1177, 1687, 2651, 8239, 12947, 18557, 25787, 29161, 90629, 180509, 204127, 283657, 1985599, 3120227, 21841589]

約数ペア:

[(1, 21841589), (7, 3120227), (11, 1985599), (77, 283657), (107, 204127), (121, 180509), (241, 90629), (749, 29161), (847, 25787), (1177, 18557), (1687, 12947), (2651, 8239)]