42987021

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2621}}^1$

素因数の和:2713

約数の個数: 32

約数和(自身を含む): 72493056

約数和(自身を除く): 29506035

約数列:

[1, 3, 7, 11, 21, 33, 71, 77, 213, 231, 497, 781, 1491, 2343, 2621, 5467, 7863, 16401, 18347, 28831, 55041, 86493, 186091, 201817, 558273, 605451, 1302637, 2047001, 3907911, 6141003, 14329007, 42987021]

約数ペア:

[(1, 42987021), (3, 14329007), (7, 6141003), (11, 3907911), (21, 2047001), (33, 1302637), (71, 605451), (77, 558273), (213, 201817), (231, 186091), (497, 86493), (781, 55041), (1491, 28831), (2343, 18347), (2621, 16401), (5467, 7863)]