21118617

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{60167}}^1$

素因数の和:60189

約数の個数: 16

約数和(自身を含む): 33694080

約数和(自身を除く): 12575463

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 60167, 180501, 541503, 782171, 1624509, 2346513, 7039539, 21118617]

約数ペア:

[(1, 21118617), (3, 7039539), (9, 2346513), (13, 1624509), (27, 782171), (39, 541503), (117, 180501), (351, 60167)]