2178141

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:185

約数の個数: 32

約数和(自身を含む): 3594240

約数和(自身を除く): 1416099

約数列:

[1, 3, 7, 19, 21, 53, 57, 103, 133, 159, 309, 371, 399, 721, 1007, 1113, 1957, 2163, 3021, 5459, 5871, 7049, 13699, 16377, 21147, 38213, 41097, 103721, 114639, 311163, 726047, 2178141]

約数ペア:

[(1, 2178141), (3, 726047), (7, 311163), (19, 114639), (21, 103721), (53, 41097), (57, 38213), (103, 21147), (133, 16377), (159, 13699), (309, 7049), (371, 5871), (399, 5459), (721, 3021), (1007, 2163), (1113, 1957)]