20218599

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:332

約数の個数: 32

約数和(自身を含む): 31104000

約数和(自身を除く): 10885401

約数列:

[1, 3, 9, 27, 53, 71, 159, 199, 213, 477, 597, 639, 1431, 1791, 1917, 3763, 5373, 10547, 11289, 14129, 31641, 33867, 42387, 94923, 101601, 127161, 284769, 381483, 748837, 2246511, 6739533, 20218599]

約数ペア:

[(1, 20218599), (3, 6739533), (9, 2246511), (27, 748837), (53, 381483), (71, 284769), (159, 127161), (199, 101601), (213, 94923), (477, 42387), (597, 33867), (639, 31641), (1431, 14129), (1791, 11289), (1917, 10547), (3763, 5373)]