218331399

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{508931}}^1$

素因数の和:508958

約数の個数: 16

約数和(自身を含む): 342002304

約数和(自身を除く): 123670905

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 508931, 1526793, 5598241, 6616103, 16794723, 19848309, 72777133, 218331399]

約数ペア:

[(1, 218331399), (3, 72777133), (11, 19848309), (13, 16794723), (33, 6616103), (39, 5598241), (143, 1526793), (429, 508931)]