21571137

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{6007}}^1$

素因数の和:6042

約数の個数: 32

約数和(自身を含む): 38451200

約数和(自身を除く): 16880063

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 133, 171, 189, 399, 513, 1197, 3591, 6007, 18021, 42049, 54063, 114133, 126147, 162189, 342399, 378441, 798931, 1027197, 1135323, 2396793, 3081591, 7190379, 21571137]

約数ペア:

[(1, 21571137), (3, 7190379), (7, 3081591), (9, 2396793), (19, 1135323), (21, 1027197), (27, 798931), (57, 378441), (63, 342399), (133, 162189), (171, 126147), (189, 114133), (399, 54063), (513, 42049), (1197, 18021), (3591, 6007)]