28088973

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 47361600

約数和(自身を除く): 19272627

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 109, 137, 171, 209, 327, 411, 627, 981, 1199, 1233, 1507, 1881, 2071, 2603, 3597, 4521, 6213, 7809, 10791, 13563, 14933, 18639, 22781, 23427, 28633, 44799, 68343, 85899, 134397, 164263, 205029, 257697, 283727, 492789, 851181, 1478367, 2553543, 3120997, 9362991, 28088973]

約数ペア:

[(1, 28088973), (3, 9362991), (9, 3120997), (11, 2553543), (19, 1478367), (33, 851181), (57, 492789), (99, 283727), (109, 257697), (137, 205029), (171, 164263), (209, 134397), (327, 85899), (411, 68343), (627, 44799), (981, 28633), (1199, 23427), (1233, 22781), (1507, 18639), (1881, 14933), (2071, 13563), (2603, 10791), (3597, 7809), (4521, 6213)]