20015397

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:330

約数の個数: 32

約数和(自身を含む): 30792960

約数和(自身を除く): 10777563

約数列:

[1, 3, 9, 27, 53, 71, 159, 197, 213, 477, 591, 639, 1431, 1773, 1917, 3763, 5319, 10441, 11289, 13987, 31323, 33867, 41961, 93969, 101601, 125883, 281907, 377649, 741311, 2223933, 6671799, 20015397]

約数ペア:

[(1, 20015397), (3, 6671799), (9, 2223933), (27, 741311), (53, 377649), (71, 281907), (159, 125883), (197, 101601), (213, 93969), (477, 41961), (591, 33867), (639, 31323), (1431, 13987), (1773, 11289), (1917, 10441), (3763, 5319)]