28303407

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{367}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 48222720

約数和(自身を除く): 19919313

約数列:

[1, 3, 9, 11, 19, 33, 41, 57, 99, 123, 171, 209, 367, 369, 451, 627, 779, 1101, 1353, 1881, 2337, 3303, 4037, 4059, 6973, 7011, 8569, 12111, 15047, 20919, 25707, 36333, 45141, 62757, 76703, 77121, 135423, 165517, 230109, 285893, 496551, 690327, 857679, 1489653, 2573037, 3144823, 9434469, 28303407]

約数ペア:

[(1, 28303407), (3, 9434469), (9, 3144823), (11, 2573037), (19, 1489653), (33, 857679), (41, 690327), (57, 496551), (99, 285893), (123, 230109), (171, 165517), (209, 135423), (367, 77121), (369, 76703), (451, 62757), (627, 45141), (779, 36333), (1101, 25707), (1353, 20919), (1881, 15047), (2337, 12111), (3303, 8569), (4037, 7011), (4059, 6973)]