421570233

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{20717}}^1$

素因数の和:20766

約数の個数: 48

約数和(自身を含む): 775681920

約数和(自身を除く): 354111687

約数列:

[1, 3, 7, 9, 17, 19, 21, 51, 57, 63, 119, 133, 153, 171, 323, 357, 399, 969, 1071, 1197, 2261, 2907, 6783, 20349, 20717, 62151, 145019, 186453, 352189, 393623, 435057, 1056567, 1180869, 1305171, 2465323, 2755361, 3169701, 3542607, 6691591, 7395969, 8266083, 20074773, 22187907, 24798249, 46841137, 60224319, 140523411, 421570233]

約数ペア:

[(1, 421570233), (3, 140523411), (7, 60224319), (9, 46841137), (17, 24798249), (19, 22187907), (21, 20074773), (51, 8266083), (57, 7395969), (63, 6691591), (119, 3542607), (133, 3169701), (153, 2755361), (171, 2465323), (323, 1305171), (357, 1180869), (399, 1056567), (969, 435057), (1071, 393623), (1197, 352189), (2261, 186453), (2907, 145019), (6783, 62151), (20349, 20717)]