20644526

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{77611}}^1$

素因数の和:77639

約数の個数: 16

約数和(自身を含む): 37253760

約数和(自身を除く): 16609234

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 77611, 155222, 543277, 1086554, 1474609, 2949218, 10322263, 20644526]

約数ペア:

[(1, 20644526), (2, 10322263), (7, 2949218), (14, 1474609), (19, 1086554), (38, 543277), (133, 155222), (266, 77611)]