18879814

素因数分解:

$2^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1\times {\mathrm{601}}^1$

素因数の和:855

約数の個数: 16

約数和(自身を含む): 28823760

約数和(自身を除く): 9943946

約数列:

[1, 2, 113, 139, 226, 278, 601, 1202, 15707, 31414, 67913, 83539, 135826, 167078, 9439907, 18879814]

約数ペア:

[(1, 18879814), (2, 9439907), (113, 167078), (139, 135826), (226, 83539), (278, 67913), (601, 31414), (1202, 15707)]