19968285

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{78307}}^1$

素因数の和:78332

約数の個数: 16

約数和(自身を含む): 33829056

約数和(自身を除く): 13860771

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 78307, 234921, 391535, 1174605, 1331219, 3993657, 6656095, 19968285]

約数ペア:

[(1, 19968285), (3, 6656095), (5, 3993657), (15, 1331219), (17, 1174605), (51, 391535), (85, 234921), (255, 78307)]