20881086

素因数分解:

$2^1\times 3^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{409}}^1$

素因数の和:608

約数の個数: 32

約数和(自身を含む): 42823680

約数和(自身を除く): 21942594

約数列:

[1, 2, 3, 6, 67, 127, 134, 201, 254, 381, 402, 409, 762, 818, 1227, 2454, 8509, 17018, 25527, 27403, 51054, 51943, 54806, 82209, 103886, 155829, 164418, 311658, 3480181, 6960362, 10440543, 20881086]

約数ペア:

[(1, 20881086), (2, 10440543), (3, 6960362), (6, 3480181), (67, 311658), (127, 164418), (134, 155829), (201, 103886), (254, 82209), (381, 54806), (402, 51943), (409, 51054), (762, 27403), (818, 25527), (1227, 17018), (2454, 8509)]