42721255

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{523}}^1$

素因数の和:607

約数の個数: 24

約数和(自身を含む): 56195856

約数和(自身を除く): 13474601

約数列:

[1, 5, 17, 31, 85, 155, 523, 527, 961, 2615, 2635, 4805, 8891, 16213, 16337, 44455, 81065, 81685, 275621, 502603, 1378105, 2513015, 8544251, 42721255]

約数ペア:

[(1, 42721255), (5, 8544251), (17, 2513015), (31, 1378105), (85, 502603), (155, 275621), (523, 81685), (527, 81065), (961, 44455), (2615, 16337), (2635, 16213), (4805, 8891)]