20766276

素因数分解:

$2^2\times 3^2\times {\mathrm{397}}^1\times {\mathrm{1453}}^1$

素因数の和:1860

約数の個数: 36

約数和(自身を含む): 52660972

約数和(自身を除く): 31894696

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 397, 794, 1191, 1453, 1588, 2382, 2906, 3573, 4359, 4764, 5812, 7146, 8718, 13077, 14292, 17436, 26154, 52308, 576841, 1153682, 1730523, 2307364, 3461046, 5191569, 6922092, 10383138, 20766276]

約数ペア:

[(1, 20766276), (2, 10383138), (3, 6922092), (4, 5191569), (6, 3461046), (9, 2307364), (12, 1730523), (18, 1153682), (36, 576841), (397, 52308), (794, 26154), (1191, 17436), (1453, 14292), (1588, 13077), (2382, 8718), (2906, 7146), (3573, 5812), (4359, 4764)]