278360719

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{379}}^1\times {\mathrm{1153}}^1$

素因数の和:1559

約数の個数: 24

約数和(自身を含む): 349938960

約数和(自身を除く): 71578241

約数列:

[1, 7, 13, 49, 91, 379, 637, 1153, 2653, 4927, 8071, 14989, 18571, 34489, 56497, 104923, 241423, 436987, 734461, 3058909, 5680831, 21412363, 39765817, 278360719]

約数ペア:

[(1, 278360719), (7, 39765817), (13, 21412363), (49, 5680831), (91, 3058909), (379, 734461), (637, 436987), (1153, 241423), (2653, 104923), (4927, 56497), (8071, 34489), (14989, 18571)]