21296556

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{20399}}^1$

素因数の和:20438

約数の個数: 36

約数和(自身を含む): 55692000

約数和(自身を除く): 34395444

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 116, 174, 261, 348, 522, 1044, 20399, 40798, 61197, 81596, 122394, 183591, 244788, 367182, 591571, 734364, 1183142, 1774713, 2366284, 3549426, 5324139, 7098852, 10648278, 21296556]

約数ペア:

[(1, 21296556), (2, 10648278), (3, 7098852), (4, 5324139), (6, 3549426), (9, 2366284), (12, 1774713), (18, 1183142), (29, 734364), (36, 591571), (58, 367182), (87, 244788), (116, 183591), (174, 122394), (261, 81596), (348, 61197), (522, 40798), (1044, 20399)]