21577968

素因数分解:

$2^4\times 3^3\times {\mathrm{199}}^1\times {\mathrm{251}}^1$

素因数の和:467

約数の個数: 80

約数和(自身を含む): 62496000

約数和(自身を除く): 40918032

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 144, 199, 216, 251, 398, 432, 502, 597, 753, 796, 1004, 1194, 1506, 1592, 1791, 2008, 2259, 2388, 3012, 3184, 3582, 4016, 4518, 4776, 5373, 6024, 6777, 7164, 9036, 9552, 10746, 12048, 13554, 14328, 18072, 21492, 27108, 28656, 36144, 42984, 49949, 54216, 85968, 99898, 108432, 149847, 199796, 299694, 399592, 449541, 599388, 799184, 899082, 1198776, 1348623, 1798164, 2397552, 2697246, 3596328, 5394492, 7192656, 10788984, 21577968]

約数ペア:

[(1, 21577968), (2, 10788984), (3, 7192656), (4, 5394492), (6, 3596328), (8, 2697246), (9, 2397552), (12, 1798164), (16, 1348623), (18, 1198776), (24, 899082), (27, 799184), (36, 599388), (48, 449541), (54, 399592), (72, 299694), (108, 199796), (144, 149847), (199, 108432), (216, 99898), (251, 85968), (398, 54216), (432, 49949), (502, 42984), (597, 36144), (753, 28656), (796, 27108), (1004, 21492), (1194, 18072), (1506, 14328), (1592, 13554), (1791, 12048), (2008, 10746), (2259, 9552), (2388, 9036), (3012, 7164), (3184, 6777), (3582, 6024), (4016, 5373), (4518, 4776)]