21831075

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{167}}^1$

素因数の和:273

約数の個数: 72

約数和(自身を含む): 45497088

約数和(自身を除く): 23666013

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 83, 105, 167, 175, 225, 249, 315, 415, 501, 525, 581, 747, 835, 1169, 1245, 1503, 1575, 1743, 2075, 2505, 2905, 3507, 3735, 4175, 5229, 5845, 6225, 7515, 8715, 10521, 12525, 13861, 14525, 17535, 18675, 26145, 29225, 37575, 41583, 43575, 52605, 69305, 87675, 97027, 124749, 130725, 207915, 263025, 291081, 346525, 485135, 623745, 873243, 1039575, 1455405, 2425675, 3118725, 4366215, 7277025, 21831075]

約数ペア:

[(1, 21831075), (3, 7277025), (5, 4366215), (7, 3118725), (9, 2425675), (15, 1455405), (21, 1039575), (25, 873243), (35, 623745), (45, 485135), (63, 346525), (75, 291081), (83, 263025), (105, 207915), (167, 130725), (175, 124749), (225, 97027), (249, 87675), (315, 69305), (415, 52605), (501, 43575), (525, 41583), (581, 37575), (747, 29225), (835, 26145), (1169, 18675), (1245, 17535), (1503, 14525), (1575, 13861), (1743, 12525), (2075, 10521), (2505, 8715), (2905, 7515), (3507, 6225), (3735, 5845), (4175, 5229)]