21878856

素因数分解:

$2^3\times 3^3\times {\mathrm{199}}^1\times {\mathrm{509}}^1$

素因数の和:723

約数の個数: 64

約数和(自身を含む): 61200000

約数和(自身を除く): 39321144

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 199, 216, 398, 509, 597, 796, 1018, 1194, 1527, 1592, 1791, 2036, 2388, 3054, 3582, 4072, 4581, 4776, 5373, 6108, 7164, 9162, 10746, 12216, 13743, 14328, 18324, 21492, 27486, 36648, 42984, 54972, 101291, 109944, 202582, 303873, 405164, 607746, 810328, 911619, 1215492, 1823238, 2430984, 2734857, 3646476, 5469714, 7292952, 10939428, 21878856]

約数ペア:

[(1, 21878856), (2, 10939428), (3, 7292952), (4, 5469714), (6, 3646476), (8, 2734857), (9, 2430984), (12, 1823238), (18, 1215492), (24, 911619), (27, 810328), (36, 607746), (54, 405164), (72, 303873), (108, 202582), (199, 109944), (216, 101291), (398, 54972), (509, 42984), (597, 36648), (796, 27486), (1018, 21492), (1194, 18324), (1527, 14328), (1592, 13743), (1791, 12216), (2036, 10746), (2388, 9162), (3054, 7164), (3582, 6108), (4072, 5373), (4581, 4776)]