19405791

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:324

約数の個数: 32

約数和(自身を含む): 29859840

約数和(自身を除く): 10454049

約数列:

[1, 3, 9, 27, 53, 71, 159, 191, 213, 477, 573, 639, 1431, 1719, 1917, 3763, 5157, 10123, 11289, 13561, 30369, 33867, 40683, 91107, 101601, 122049, 273321, 366147, 718733, 2156199, 6468597, 19405791]

約数ペア:

[(1, 19405791), (3, 6468597), (9, 2156199), (27, 718733), (53, 366147), (71, 273321), (159, 122049), (191, 101601), (213, 91107), (477, 40683), (573, 33867), (639, 30369), (1431, 13561), (1719, 11289), (1917, 10123), (3763, 5157)]