57491721

素因数分解:

$3^3\times 7^1\times {\mathrm{331}}^1\times {\mathrm{919}}^1$

素因数の和:1266

約数の個数: 32

約数和(自身を含む): 97740800

約数和(自身を除く): 40249079

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 331, 919, 993, 2317, 2757, 2979, 6433, 6951, 8271, 8937, 19299, 20853, 24813, 57897, 62559, 173691, 304189, 912567, 2129323, 2737701, 6387969, 8213103, 19163907, 57491721]

約数ペア:

[(1, 57491721), (3, 19163907), (7, 8213103), (9, 6387969), (21, 2737701), (27, 2129323), (63, 912567), (189, 304189), (331, 173691), (919, 62559), (993, 57897), (2317, 24813), (2757, 20853), (2979, 19299), (6433, 8937), (6951, 8271)]