131428521

素因数分解:

$3^3\times 7^1\times {\mathrm{695389}}^1$

素因数の和:695405

約数の個数: 16

約数和(自身を含む): 222524800

約数和(自身を除く): 91096279

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 695389, 2086167, 4867723, 6258501, 14603169, 18775503, 43809507, 131428521]

約数ペア:

[(1, 131428521), (3, 43809507), (7, 18775503), (9, 14603169), (21, 6258501), (27, 4867723), (63, 2086167), (189, 695389)]