128975841

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{691}}^1$

素因数の和:954

約数の個数: 32

約数和(自身を含む): 198410240

約数和(自身を除く): 69434399

約数列:

[1, 3, 9, 27, 31, 93, 223, 279, 669, 691, 837, 2007, 2073, 6021, 6219, 6913, 18657, 20739, 21421, 62217, 64263, 154093, 186651, 192789, 462279, 578367, 1386837, 4160511, 4776883, 14330649, 42991947, 128975841]

約数ペア:

[(1, 128975841), (3, 42991947), (9, 14330649), (27, 4776883), (31, 4160511), (93, 1386837), (223, 578367), (279, 462279), (669, 192789), (691, 186651), (837, 154093), (2007, 64263), (2073, 62217), (6021, 21421), (6219, 20739), (6913, 18657)]