27908979

素因数分解:

$3^1\times 7^2\times {\mathrm{373}}^1\times {\mathrm{509}}^1$

素因数の和:899

約数の個数: 24

約数和(自身を含む): 43488720

約数和(自身を除く): 15579741

約数列:

[1, 3, 7, 21, 49, 147, 373, 509, 1119, 1527, 2611, 3563, 7833, 10689, 18277, 24941, 54831, 74823, 189857, 569571, 1328999, 3986997, 9302993, 27908979]

約数ペア:

[(1, 27908979), (3, 9302993), (7, 3986997), (21, 1328999), (49, 569571), (147, 189857), (373, 74823), (509, 54831), (1119, 24941), (1527, 18277), (2611, 10689), (3563, 7833)]