688400001

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{55147}}^1$

素因数の和:55245

約数の個数: 24

約数和(自身を含む): 1061047520

約数和(自身を除く): 372647519

約数列:

[1, 3, 9, 19, 57, 73, 171, 219, 657, 1387, 4161, 12483, 55147, 165441, 496323, 1047793, 3143379, 4025731, 9430137, 12077193, 36231579, 76488889, 229466667, 688400001]

約数ペア:

[(1, 688400001), (3, 229466667), (9, 76488889), (19, 36231579), (57, 12077193), (73, 9430137), (171, 4025731), (219, 3143379), (657, 1047793), (1387, 496323), (4161, 165441), (12483, 55147)]