28604367

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1$

素因数の和:213

約数の個数: 64

約数和(自身を含む): 50342400

約数和(自身を除く): 21738033

約数列:

[1, 3, 9, 11, 19, 27, 33, 37, 57, 99, 111, 137, 171, 209, 297, 333, 407, 411, 513, 627, 703, 999, 1221, 1233, 1507, 1881, 2109, 2603, 3663, 3699, 4521, 5069, 5643, 6327, 7733, 7809, 10989, 13563, 15207, 18981, 23199, 23427, 28633, 40689, 45621, 55759, 69597, 70281, 85899, 96311, 136863, 167277, 208791, 257697, 288933, 501831, 773091, 866799, 1059421, 1505493, 2600397, 3178263, 9534789, 28604367]

約数ペア:

[(1, 28604367), (3, 9534789), (9, 3178263), (11, 2600397), (19, 1505493), (27, 1059421), (33, 866799), (37, 773091), (57, 501831), (99, 288933), (111, 257697), (137, 208791), (171, 167277), (209, 136863), (297, 96311), (333, 85899), (407, 70281), (411, 69597), (513, 55759), (627, 45621), (703, 40689), (999, 28633), (1221, 23427), (1233, 23199), (1507, 18981), (1881, 15207), (2109, 13563), (2603, 10989), (3663, 7809), (3699, 7733), (4521, 6327), (5069, 5643)]