21819546

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1103}}^1$

素因数の和:1275

約数の個数: 48

約数和(自身を含む): 54422784

約数和(自身を除く): 32603238

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 157, 314, 471, 942, 1099, 1103, 1413, 2198, 2206, 2826, 3297, 3309, 6594, 6618, 7721, 9891, 9927, 15442, 19782, 19854, 23163, 46326, 69489, 138978, 173171, 346342, 519513, 1039026, 1212197, 1558539, 2424394, 3117078, 3636591, 7273182, 10909773, 21819546]

約数ペア:

[(1, 21819546), (2, 10909773), (3, 7273182), (6, 3636591), (7, 3117078), (9, 2424394), (14, 1558539), (18, 1212197), (21, 1039026), (42, 519513), (63, 346342), (126, 173171), (157, 138978), (314, 69489), (471, 46326), (942, 23163), (1099, 19854), (1103, 19782), (1413, 15442), (2198, 9927), (2206, 9891), (2826, 7721), (3297, 6618), (3309, 6594)]