18215197

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{587}}^1$

素因数の和:649

約数の個数: 32

約数和(自身を含む): 25288704

約数和(自身を除く): 7073507

約数列:

[1, 7, 11, 13, 31, 77, 91, 143, 217, 341, 403, 587, 1001, 2387, 2821, 4109, 4433, 6457, 7631, 18197, 31031, 45199, 53417, 83941, 127379, 200167, 236561, 587587, 1401169, 1655927, 2602171, 18215197]

約数ペア:

[(1, 18215197), (7, 2602171), (11, 1655927), (13, 1401169), (31, 587587), (77, 236561), (91, 200167), (143, 127379), (217, 83941), (341, 53417), (403, 45199), (587, 31031), (1001, 18197), (2387, 7631), (2821, 6457), (4109, 4433)]