20447361

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2909}}^1$

素因数の和:2997

約数の個数: 24

約数和(自身を含む): 32685120

約数和(自身を除く): 12237759

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 639, 781, 2343, 2909, 7029, 8727, 26181, 31999, 95997, 206539, 287991, 619617, 1858851, 2271929, 6815787, 20447361]

約数ペア:

[(1, 20447361), (3, 6815787), (9, 2271929), (11, 1858851), (33, 619617), (71, 287991), (99, 206539), (213, 95997), (639, 31999), (781, 26181), (2343, 8727), (2909, 7029)]