19542928

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{71849}}^1$

素因数の和:71874

約数の個数: 20

約数和(自身を含む): 40092300

約数和(自身を除く): 20549372

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 71849, 143698, 287396, 574792, 1149584, 1221433, 2442866, 4885732, 9771464, 19542928]

約数ペア:

[(1, 19542928), (2, 9771464), (4, 4885732), (8, 2442866), (16, 1221433), (17, 1149584), (34, 574792), (68, 287396), (136, 143698), (272, 71849)]