20836569

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:297

約数の個数: 32

約数和(自身を含む): 31215744

約数和(自身を除く): 10379175

約数列:

[1, 3, 13, 39, 41, 83, 123, 157, 249, 471, 533, 1079, 1599, 2041, 3237, 3403, 6123, 6437, 10209, 13031, 19311, 39093, 44239, 83681, 132717, 169403, 251043, 508209, 534271, 1602813, 6945523, 20836569]

約数ペア:

[(1, 20836569), (3, 6945523), (13, 1602813), (39, 534271), (41, 508209), (83, 251043), (123, 169403), (157, 132717), (249, 83681), (471, 44239), (533, 39093), (1079, 19311), (1599, 13031), (2041, 10209), (3237, 6437), (3403, 6123)]