89988921

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{431}}^1$

素因数の和:507

約数の個数: 64

約数和(自身を含む): 157593600

約数和(自身を除く): 67604679

約数列:

[1, 3, 9, 11, 19, 27, 33, 37, 57, 99, 111, 171, 209, 297, 333, 407, 431, 513, 627, 703, 999, 1221, 1293, 1881, 2109, 3663, 3879, 4741, 5643, 6327, 7733, 8189, 10989, 11637, 14223, 15947, 18981, 23199, 24567, 42669, 47841, 69597, 73701, 90079, 128007, 143523, 175417, 208791, 221103, 270237, 302993, 430569, 526251, 810711, 908979, 1578753, 2432133, 2726937, 3332923, 4736259, 8180811, 9998769, 29996307, 89988921]

約数ペア:

[(1, 89988921), (3, 29996307), (9, 9998769), (11, 8180811), (19, 4736259), (27, 3332923), (33, 2726937), (37, 2432133), (57, 1578753), (99, 908979), (111, 810711), (171, 526251), (209, 430569), (297, 302993), (333, 270237), (407, 221103), (431, 208791), (513, 175417), (627, 143523), (703, 128007), (999, 90079), (1221, 73701), (1293, 69597), (1881, 47841), (2109, 42669), (3663, 24567), (3879, 23199), (4741, 18981), (5643, 15947), (6327, 14223), (7733, 11637), (8189, 10989)]