199984889

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^2\times {\mathrm{661}}^1$

素因数の和:765

約数の個数: 24

約数和(自身を含む): 234721368

約数和(自身を除く): 34736479

約数列:

[1, 13, 17, 37, 221, 481, 629, 661, 1369, 8177, 8593, 11237, 17797, 23273, 24457, 146081, 302549, 317941, 415769, 904909, 5404997, 11763817, 15383453, 199984889]

約数ペア:

[(1, 199984889), (13, 15383453), (17, 11763817), (37, 5404997), (221, 904909), (481, 415769), (629, 317941), (661, 302549), (1369, 146081), (8177, 24457), (8593, 23273), (11237, 17797)]