21000547653

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{22639}}^1$

素因数の和:22877

約数の個数: 32

約数和(自身を含む): 29443591680

約数和(自身を除く): 8443044027

約数列:

[1, 3, 37, 61, 111, 137, 183, 411, 2257, 5069, 6771, 8357, 15207, 22639, 25071, 67917, 309209, 837643, 927627, 1380979, 2512929, 3101543, 4142937, 9304629, 51096223, 114757091, 153288669, 189194123, 344271273, 567582369, 7000182551, 21000547653]

約数ペア:

[(1, 21000547653), (3, 7000182551), (37, 567582369), (61, 344271273), (111, 189194123), (137, 153288669), (183, 114757091), (411, 51096223), (2257, 9304629), (5069, 4142937), (6771, 3101543), (8357, 2512929), (15207, 1380979), (22639, 927627), (25071, 837643), (67917, 309209)]