18911212

素因数分解:

$2^2\times {\mathrm{103}}^1\times {\mathrm{197}}^1\times {\mathrm{233}}^1$

素因数の和:537

約数の個数: 24

約数和(自身を含む): 33729696

約数和(自身を除く): 14818484

約数列:

[1, 2, 4, 103, 197, 206, 233, 394, 412, 466, 788, 932, 20291, 23999, 40582, 45901, 47998, 81164, 91802, 95996, 183604, 4727803, 9455606, 18911212]

約数ペア:

[(1, 18911212), (2, 9455606), (4, 4727803), (103, 183604), (197, 95996), (206, 91802), (233, 81164), (394, 47998), (412, 45901), (466, 40582), (788, 23999), (932, 20291)]