18704979

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{277}}^1$

素因数の和:388

約数の個数: 32

約数和(自身を含む): 28956480

約数和(自身を除く): 10251501

約数列:

[1, 3, 9, 27, 41, 61, 123, 183, 277, 369, 549, 831, 1107, 1647, 2493, 2501, 7479, 7503, 11357, 16897, 22509, 34071, 50691, 67527, 102213, 152073, 306639, 456219, 692777, 2078331, 6234993, 18704979]

約数ペア:

[(1, 18704979), (3, 6234993), (9, 2078331), (27, 692777), (41, 456219), (61, 306639), (123, 152073), (183, 102213), (277, 67527), (369, 50691), (549, 34071), (831, 22509), (1107, 16897), (1647, 11357), (2493, 7503), (2501, 7479)]