261571271

素因数分解:

${\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^2$

素因数の和:180

約数の個数: 36

約数和(自身を含む): 314357400

約数和(自身を除く): 52786129

約数列:

[1, 13, 19, 29, 53, 169, 247, 377, 551, 689, 1007, 1537, 2809, 3211, 4901, 7163, 8957, 13091, 19981, 29203, 36517, 53371, 81461, 93119, 170183, 259753, 379639, 474721, 693823, 1058993, 1547759, 4935307, 9019699, 13766909, 20120867, 261571271]

約数ペア:

[(1, 261571271), (13, 20120867), (19, 13766909), (29, 9019699), (53, 4935307), (169, 1547759), (247, 1058993), (377, 693823), (551, 474721), (689, 379639), (1007, 259753), (1537, 170183), (2809, 93119), (3211, 81461), (4901, 53371), (7163, 36517), (8957, 29203), (13091, 19981)]