21787128

素因数分解:

$2^3\times 3^2\times {\mathrm{11}}^1\times {\mathrm{27509}}^1$

素因数の和:27532

約数の個数: 48

約数和(自身を含む): 64373400

約数和(自身を除く): 42586272

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 33, 36, 44, 66, 72, 88, 99, 132, 198, 264, 396, 792, 27509, 55018, 82527, 110036, 165054, 220072, 247581, 302599, 330108, 495162, 605198, 660216, 907797, 990324, 1210396, 1815594, 1980648, 2420792, 2723391, 3631188, 5446782, 7262376, 10893564, 21787128]

約数ペア:

[(1, 21787128), (2, 10893564), (3, 7262376), (4, 5446782), (6, 3631188), (8, 2723391), (9, 2420792), (11, 1980648), (12, 1815594), (18, 1210396), (22, 990324), (24, 907797), (33, 660216), (36, 605198), (44, 495162), (66, 330108), (72, 302599), (88, 247581), (99, 220072), (132, 165054), (198, 110036), (264, 82527), (396, 55018), (792, 27509)]