20416319

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1$

素因数の和:311

約数の個数: 32

約数和(自身を含む): 27095040

約数和(自身を除く): 6678721

約数列:

[1, 7, 11, 29, 41, 77, 203, 223, 287, 319, 451, 1189, 1561, 2233, 2453, 3157, 6467, 8323, 9143, 13079, 17171, 45269, 64001, 71137, 91553, 100573, 265147, 497959, 704011, 1856029, 2916617, 20416319]

約数ペア:

[(1, 20416319), (7, 2916617), (11, 1856029), (29, 704011), (41, 497959), (77, 265147), (203, 100573), (223, 91553), (287, 71137), (319, 64001), (451, 45269), (1189, 17171), (1561, 13079), (2233, 9143), (2453, 8323), (3157, 6467)]