17951989

素因数分解:

${\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1$

素因数の和:408

約数の個数: 16

約数和(自身を含む): 20160000

約数和(自身を除く): 2208011

約数列:

[1, 11, 59, 139, 199, 649, 1529, 2189, 8201, 11741, 27661, 90211, 129151, 304271, 1631999, 17951989]

約数ペア:

[(1, 17951989), (11, 1631999), (59, 304271), (139, 129151), (199, 90211), (649, 27661), (1529, 11741), (2189, 8201)]