21700854

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1097}}^1$

素因数の和:1269

約数の個数: 48

約数和(自身を含む): 54127008

約数和(自身を除く): 32426154

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 157, 314, 471, 942, 1097, 1099, 1413, 2194, 2198, 2826, 3291, 3297, 6582, 6594, 7679, 9873, 9891, 15358, 19746, 19782, 23037, 46074, 69111, 138222, 172229, 344458, 516687, 1033374, 1205603, 1550061, 2411206, 3100122, 3616809, 7233618, 10850427, 21700854]

約数ペア:

[(1, 21700854), (2, 10850427), (3, 7233618), (6, 3616809), (7, 3100122), (9, 2411206), (14, 1550061), (18, 1205603), (21, 1033374), (42, 516687), (63, 344458), (126, 172229), (157, 138222), (314, 69111), (471, 46074), (942, 23037), (1097, 19782), (1099, 19746), (1413, 15358), (2194, 9891), (2198, 9873), (2826, 7679), (3291, 6594), (3297, 6582)]