7661997

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 13752960

約数和(自身を除く): 6090963

約数列:

[1, 3, 7, 9, 19, 21, 37, 57, 63, 111, 133, 171, 173, 259, 333, 399, 519, 703, 777, 1197, 1211, 1557, 2109, 2331, 3287, 3633, 4921, 6327, 6401, 9861, 10899, 14763, 19203, 23009, 29583, 44289, 44807, 57609, 69027, 121619, 134421, 207081, 364857, 403263, 851333, 1094571, 2553999, 7661997]

約数ペア:

[(1, 7661997), (3, 2553999), (7, 1094571), (9, 851333), (19, 403263), (21, 364857), (37, 207081), (57, 134421), (63, 121619), (111, 69027), (133, 57609), (171, 44807), (173, 44289), (259, 29583), (333, 23009), (399, 19203), (519, 14763), (703, 10899), (777, 9861), (1197, 6401), (1211, 6327), (1557, 4921), (2109, 3633), (2331, 3287)]