21660759

素因数分解:

$3^2\times {\mathrm{83}}^1\times {\mathrm{107}}^1\times {\mathrm{271}}^1$

素因数の和:467

約数の個数: 24

約数和(自身を含む): 32078592

約数和(自身を除く): 10417833

約数列:

[1, 3, 9, 83, 107, 249, 271, 321, 747, 813, 963, 2439, 8881, 22493, 26643, 28997, 67479, 79929, 86991, 202437, 260973, 2406751, 7220253, 21660759]

約数ペア:

[(1, 21660759), (3, 7220253), (9, 2406751), (83, 260973), (107, 202437), (249, 86991), (271, 79929), (321, 67479), (747, 28997), (813, 26643), (963, 22493), (2439, 8881)]