19998526

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{12239}}^1$

素因数の和:12303

約数の個数: 16

約数和(自身を含む): 32313600

約数和(自身を除く): 12315074

約数列:

[1, 2, 19, 38, 43, 86, 817, 1634, 12239, 24478, 232541, 465082, 526277, 1052554, 9999263, 19998526]

約数ペア:

[(1, 19998526), (2, 9999263), (19, 1052554), (38, 526277), (43, 465082), (86, 232541), (817, 24478), (1634, 12239)]