20843277

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{839}}^1$

素因数の和:882

約数の個数: 36

約数和(自身を含む): 35048160

約数和(自身を除く): 14204883

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 169, 273, 507, 637, 839, 1183, 1911, 2517, 3549, 5873, 8281, 10907, 17619, 24843, 32721, 41111, 76349, 123333, 141791, 229047, 425373, 534443, 992537, 1603329, 2977611, 6947759, 20843277]

約数ペア:

[(1, 20843277), (3, 6947759), (7, 2977611), (13, 1603329), (21, 992537), (39, 534443), (49, 425373), (91, 229047), (147, 141791), (169, 123333), (273, 76349), (507, 41111), (637, 32721), (839, 24843), (1183, 17619), (1911, 10907), (2517, 8281), (3549, 5873)]