21701367

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:192

約数の個数: 48

約数和(自身を含む): 35324640

約数和(自身を除く): 13623273

約数列:

[1, 3, 9, 17, 29, 51, 67, 73, 87, 153, 201, 219, 261, 493, 603, 657, 1139, 1241, 1479, 1943, 2117, 3417, 3723, 4437, 4891, 5829, 6351, 10251, 11169, 14673, 17487, 19053, 33031, 35989, 44019, 83147, 99093, 107967, 141839, 249441, 297279, 323901, 425517, 748323, 1276551, 2411263, 7233789, 21701367]

約数ペア:

[(1, 21701367), (3, 7233789), (9, 2411263), (17, 1276551), (29, 748323), (51, 425517), (67, 323901), (73, 297279), (87, 249441), (153, 141839), (201, 107967), (219, 99093), (261, 83147), (493, 44019), (603, 35989), (657, 33031), (1139, 19053), (1241, 17487), (1479, 14673), (1943, 11169), (2117, 10251), (3417, 6351), (3723, 5829), (4437, 4891)]