20938995

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6043}}^1$

素因数の和:6072

約数の個数: 48

約数和(自身を含む): 45257472

約数和(自身を除く): 24318477

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 385, 495, 693, 1155, 3465, 6043, 18129, 30215, 42301, 54387, 66473, 90645, 126903, 199419, 211505, 271935, 332365, 380709, 465311, 598257, 634515, 997095, 1395933, 1903545, 2326555, 2991285, 4187799, 6979665, 20938995]

約数ペア:

[(1, 20938995), (3, 6979665), (5, 4187799), (7, 2991285), (9, 2326555), (11, 1903545), (15, 1395933), (21, 997095), (33, 634515), (35, 598257), (45, 465311), (55, 380709), (63, 332365), (77, 271935), (99, 211505), (105, 199419), (165, 126903), (231, 90645), (315, 66473), (385, 54387), (495, 42301), (693, 30215), (1155, 18129), (3465, 6043)]