128547139

素因数分解:

$7^4\times {\mathrm{37}}^1\times {\mathrm{1447}}^1$

素因数の和:1512

約数の個数: 20

約数和(自身を含む): 154122224

約数和(自身を除く): 25575085

約数列:

[1, 7, 37, 49, 259, 343, 1447, 1813, 2401, 10129, 12691, 53539, 70903, 88837, 374773, 496321, 2623411, 3474247, 18363877, 128547139]

約数ペア:

[(1, 128547139), (7, 18363877), (37, 3474247), (49, 2623411), (259, 496321), (343, 374773), (1447, 88837), (1813, 70903), (2401, 53539), (10129, 12691)]