247968077

素因数分解:

$7^4\times {\mathrm{139}}^1\times {\mathrm{743}}^1$

素因数の和:910

約数の個数: 20

約数和(自身を含む): 291752160

約数和(自身を除く): 43784083

約数列:

[1, 7, 49, 139, 343, 743, 973, 2401, 5201, 6811, 36407, 47677, 103277, 254849, 333739, 722939, 1783943, 5060573, 35424011, 247968077]

約数ペア:

[(1, 247968077), (7, 35424011), (49, 5060573), (139, 1783943), (343, 722939), (743, 333739), (973, 254849), (2401, 103277), (5201, 47677), (6811, 36407)]