21281724

素因数分解:

$2^2\times 3^3\times {\mathrm{193}}^1\times {\mathrm{1021}}^1$

素因数の和:1227

約数の個数: 48

約数和(自身を含む): 55515040

約数和(自身を除く): 34233316

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 193, 386, 579, 772, 1021, 1158, 1737, 2042, 2316, 3063, 3474, 4084, 5211, 6126, 6948, 9189, 10422, 12252, 18378, 20844, 27567, 36756, 55134, 110268, 197053, 394106, 591159, 788212, 1182318, 1773477, 2364636, 3546954, 5320431, 7093908, 10640862, 21281724]

約数ペア:

[(1, 21281724), (2, 10640862), (3, 7093908), (4, 5320431), (6, 3546954), (9, 2364636), (12, 1773477), (18, 1182318), (27, 788212), (36, 591159), (54, 394106), (108, 197053), (193, 110268), (386, 55134), (579, 36756), (772, 27567), (1021, 20844), (1158, 18378), (1737, 12252), (2042, 10422), (2316, 9189), (3063, 6948), (3474, 6126), (4084, 5211)]