2553999

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1$

素因数の和:239

約数の個数: 32

約数和(自身を含む): 4231680

約数和(自身を除く): 1677681

約数列:

[1, 3, 7, 19, 21, 37, 57, 111, 133, 173, 259, 399, 519, 703, 777, 1211, 2109, 3287, 3633, 4921, 6401, 9861, 14763, 19203, 23009, 44807, 69027, 121619, 134421, 364857, 851333, 2553999]

約数ペア:

[(1, 2553999), (3, 851333), (7, 364857), (19, 134421), (21, 121619), (37, 69027), (57, 44807), (111, 23009), (133, 19203), (173, 14763), (259, 9861), (399, 6401), (519, 4921), (703, 3633), (777, 3287), (1211, 2109)]