20193778

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{8123}}^1$

素因数の和:8249

約数の個数: 16

約数和(自身を含む): 33340896

約数和(自身を除く): 13147118

約数列:

[1, 2, 11, 22, 113, 226, 1243, 2486, 8123, 16246, 89353, 178706, 917899, 1835798, 10096889, 20193778]

約数ペア:

[(1, 20193778), (2, 10096889), (11, 1835798), (22, 917899), (113, 178706), (226, 89353), (1243, 16246), (2486, 8123)]