18687413390

素因数分解:

$2^1\times 5^1\times {\mathrm{8999}}^1\times {\mathrm{207661}}^1$

素因数の和:216667

約数の個数: 16

約数和(自身を含む): 33641244000

約数和(自身を除く): 14953830610

約数列:

[1, 2, 5, 10, 8999, 17998, 44995, 89990, 207661, 415322, 1038305, 2076610, 1868741339, 3737482678, 9343706695, 18687413390]

約数ペア:

[(1, 18687413390), (2, 9343706695), (5, 3737482678), (10, 1868741339), (8999, 2076610), (17998, 1038305), (44995, 415322), (89990, 207661)]