18953803

素因数分解:

${\mathrm{11}}^2\times {\mathrm{31}}^2\times {\mathrm{163}}^1$

素因数の和:247

約数の個数: 18

約数和(自身を含む): 21659316

約数和(自身を除く): 2705513

約数列:

[1, 11, 31, 121, 163, 341, 961, 1793, 3751, 5053, 10571, 19723, 55583, 116281, 156643, 611413, 1723073, 18953803]

約数ペア:

[(1, 18953803), (11, 1723073), (31, 611413), (121, 156643), (163, 116281), (341, 55583), (961, 19723), (1793, 10571), (3751, 5053)]