648676539

素因数分解:

$3^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{863}}^1$

素因数の和:1017

約数の個数: 64

約数和(自身を含む): 1137991680

約数和(自身を除く): 489315141

約数列:

[1, 3, 7, 9, 21, 27, 41, 63, 97, 123, 189, 287, 291, 369, 679, 861, 863, 873, 1107, 2037, 2583, 2589, 2619, 3977, 6041, 6111, 7749, 7767, 11931, 18123, 18333, 23301, 27839, 35383, 35793, 54369, 83517, 83711, 106149, 107379, 163107, 247681, 250551, 251133, 318447, 585977, 743043, 751653, 753399, 955341, 1757931, 2229129, 2260197, 3432151, 5273793, 6687387, 10296453, 15821379, 24025057, 30889359, 72075171, 92668077, 216225513, 648676539]

約数ペア:

[(1, 648676539), (3, 216225513), (7, 92668077), (9, 72075171), (21, 30889359), (27, 24025057), (41, 15821379), (63, 10296453), (97, 6687387), (123, 5273793), (189, 3432151), (287, 2260197), (291, 2229129), (369, 1757931), (679, 955341), (861, 753399), (863, 751653), (873, 743043), (1107, 585977), (2037, 318447), (2583, 251133), (2589, 250551), (2619, 247681), (3977, 163107), (6041, 107379), (6111, 106149), (7749, 83711), (7767, 83517), (11931, 54369), (18123, 35793), (18333, 35383), (23301, 27839)]