12995991

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{13009}}^1$

素因数の和:13055

約数の個数: 16

約数和(自身を含む): 19775200

約数和(自身を除く): 6779209

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 13009, 39027, 117081, 351243, 481333, 1443999, 4331997, 12995991]

約数ペア:

[(1, 12995991), (3, 4331997), (9, 1443999), (27, 481333), (37, 351243), (111, 117081), (333, 39027), (999, 13009)]