7778991

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{277}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 12169728

約数和(自身を除く): 4390737

約数列:

[1, 3, 11, 23, 33, 37, 69, 111, 253, 277, 407, 759, 831, 851, 1221, 2553, 3047, 6371, 9141, 9361, 10249, 19113, 28083, 30747, 70081, 112739, 210243, 235727, 338217, 707181, 2592997, 7778991]

約数ペア:

[(1, 7778991), (3, 2592997), (11, 707181), (23, 338217), (33, 235727), (37, 210243), (69, 112739), (111, 70081), (253, 30747), (277, 28083), (407, 19113), (759, 10249), (831, 9361), (851, 9141), (1221, 6371), (2553, 3047)]