260099021

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{673}}^1$

素因数の和:861

約数の個数: 32

約数和(自身を含む): 333355008

約数和(自身を除く): 73255987

約数列:

[1, 7, 13, 31, 91, 137, 217, 403, 673, 959, 1781, 2821, 4247, 4711, 8749, 12467, 20863, 29729, 55211, 61243, 92201, 146041, 271219, 386477, 645407, 1198613, 1898533, 2858231, 8390291, 20007617, 37157003, 260099021]

約数ペア:

[(1, 260099021), (7, 37157003), (13, 20007617), (31, 8390291), (91, 2858231), (137, 1898533), (217, 1198613), (403, 645407), (673, 386477), (959, 271219), (1781, 146041), (2821, 92201), (4247, 61243), (4711, 55211), (8749, 29729), (12467, 20863)]