15978885

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{81943}}^1$

素因数の和:81964

約数の個数: 16

約数和(自身を含む): 27533184

約数和(自身を除く): 11554299

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 81943, 245829, 409715, 1065259, 1229145, 3195777, 5326295, 15978885]

約数ペア:

[(1, 15978885), (3, 5326295), (5, 3195777), (13, 1229145), (15, 1065259), (39, 409715), (65, 245829), (195, 81943)]