21297771

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{5003}}^1$

素因数の和:5063

約数の個数: 24

約数和(自身を含む): 34347456

約数和(自身を除く): 13049685

約数列:

[1, 3, 9, 11, 33, 43, 99, 129, 387, 473, 1419, 4257, 5003, 15009, 45027, 55033, 165099, 215129, 495297, 645387, 1936161, 2366419, 7099257, 21297771]

約数ペア:

[(1, 21297771), (3, 7099257), (9, 2366419), (11, 1936161), (33, 645387), (43, 495297), (99, 215129), (129, 165099), (387, 55033), (473, 45027), (1419, 15009), (4257, 5003)]