28977993

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{293}}^1$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 48799296

約数和(自身を除く): 19821303

約数列:

[1, 3, 9, 11, 27, 33, 37, 81, 99, 111, 243, 293, 297, 333, 407, 879, 891, 999, 1221, 2637, 2673, 2997, 3223, 3663, 7911, 8991, 9669, 10841, 10989, 23733, 29007, 32523, 32967, 71199, 87021, 97569, 98901, 119251, 261063, 292707, 357753, 783189, 878121, 1073259, 2634363, 3219777, 9659331, 28977993]

約数ペア:

[(1, 28977993), (3, 9659331), (9, 3219777), (11, 2634363), (27, 1073259), (33, 878121), (37, 783189), (81, 357753), (99, 292707), (111, 261063), (243, 119251), (293, 98901), (297, 97569), (333, 87021), (407, 71199), (879, 32967), (891, 32523), (999, 29007), (1221, 23733), (2637, 10989), (2673, 10841), (2997, 9669), (3223, 8991), (3663, 7911)]