8991297

素因数分解:

$3^3\times 7^1\times {\mathrm{113}}^1\times {\mathrm{421}}^1$

素因数の和:550

約数の個数: 32

約数和(自身を含む): 15394560

約数和(自身を除く): 6403263

約数列:

[1, 3, 7, 9, 21, 27, 63, 113, 189, 339, 421, 791, 1017, 1263, 2373, 2947, 3051, 3789, 7119, 8841, 11367, 21357, 26523, 47573, 79569, 142719, 333011, 428157, 999033, 1284471, 2997099, 8991297]

約数ペア:

[(1, 8991297), (3, 2997099), (7, 1284471), (9, 999033), (21, 428157), (27, 333011), (63, 142719), (113, 79569), (189, 47573), (339, 26523), (421, 21357), (791, 11367), (1017, 8841), (1263, 7119), (2373, 3789), (2947, 3051)]