21575043

素因数分解:

$3^2\times 7^3\times {\mathrm{29}}^1\times {\mathrm{241}}^1$

素因数の和:297

約数の個数: 48

約数和(自身を含む): 37752000

約数和(自身を除く): 16176957

約数列:

[1, 3, 7, 9, 21, 29, 49, 63, 87, 147, 203, 241, 261, 343, 441, 609, 723, 1029, 1421, 1687, 1827, 2169, 3087, 4263, 5061, 6989, 9947, 11809, 12789, 15183, 20967, 29841, 35427, 48923, 62901, 82663, 89523, 106281, 146769, 247989, 342461, 440307, 743967, 1027383, 2397227, 3082149, 7191681, 21575043]

約数ペア:

[(1, 21575043), (3, 7191681), (7, 3082149), (9, 2397227), (21, 1027383), (29, 743967), (49, 440307), (63, 342461), (87, 247989), (147, 146769), (203, 106281), (241, 89523), (261, 82663), (343, 62901), (441, 48923), (609, 35427), (723, 29841), (1029, 20967), (1421, 15183), (1687, 12789), (1827, 11809), (2169, 9947), (3087, 6989), (4263, 5061)]