156562007

素因数分解:

$7^4\times {\mathrm{197}}^1\times {\mathrm{331}}^1$

素因数の和:556

約数の個数: 20

約数和(自身を含む): 184126536

約数和(自身を除く): 27564529

約数列:

[1, 7, 49, 197, 331, 343, 1379, 2317, 2401, 9653, 16219, 65207, 67571, 113533, 456449, 472997, 794731, 3195143, 22366001, 156562007]

約数ペア:

[(1, 156562007), (7, 22366001), (49, 3195143), (197, 794731), (331, 472997), (343, 456449), (1379, 113533), (2317, 67571), (2401, 65207), (9653, 16219)]