21095946

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{971}}^1$

素因数の和:1067

約数の個数: 48

約数和(自身を含む): 49128768

約数和(自身を除く): 28032822

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 71, 102, 142, 153, 213, 306, 426, 639, 971, 1207, 1278, 1942, 2414, 2913, 3621, 5826, 7242, 8739, 10863, 16507, 17478, 21726, 33014, 49521, 68941, 99042, 137882, 148563, 206823, 297126, 413646, 620469, 1171997, 1240938, 2343994, 3515991, 7031982, 10547973, 21095946]

約数ペア:

[(1, 21095946), (2, 10547973), (3, 7031982), (6, 3515991), (9, 2343994), (17, 1240938), (18, 1171997), (34, 620469), (51, 413646), (71, 297126), (102, 206823), (142, 148563), (153, 137882), (213, 99042), (306, 68941), (426, 49521), (639, 33014), (971, 21726), (1207, 17478), (1278, 16507), (1942, 10863), (2414, 8739), (2913, 7242), (3621, 5826)]