243507

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:218

約数の個数: 16

約数和(自身を含む): 364032

約数和(自身を除く): 120525

約数列:

[1, 3, 11, 33, 47, 141, 157, 471, 517, 1551, 1727, 5181, 7379, 22137, 81169, 243507]

約数ペア:

[(1, 243507), (3, 81169), (11, 22137), (33, 7379), (47, 5181), (141, 1727), (157, 1551), (471, 517)]