18718856

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{179989}}^1$

素因数の和:180008

約数の個数: 16

約数和(自身を含む): 37797900

約数和(自身を除く): 19079044

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 179989, 359978, 719956, 1439912, 2339857, 4679714, 9359428, 18718856]

約数ペア:

[(1, 18718856), (2, 9359428), (4, 4679714), (8, 2339857), (13, 1439912), (26, 719956), (52, 359978), (104, 179989)]