28108863

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1$

素因数の和:245

約数の個数: 40

約数和(自身を含む): 44030448

約数和(自身を除く): 15921585

約数列:

[1, 3, 9, 27, 37, 81, 83, 111, 113, 249, 333, 339, 747, 999, 1017, 2241, 2997, 3051, 3071, 4181, 6723, 9153, 9213, 9379, 12543, 27639, 28137, 37629, 82917, 84411, 112887, 248751, 253233, 338661, 347023, 759699, 1041069, 3123207, 9369621, 28108863]

約数ペア:

[(1, 28108863), (3, 9369621), (9, 3123207), (27, 1041069), (37, 759699), (81, 347023), (83, 338661), (111, 253233), (113, 248751), (249, 112887), (333, 84411), (339, 82917), (747, 37629), (999, 28137), (1017, 27639), (2241, 12543), (2997, 9379), (3051, 9213), (3071, 9153), (4181, 6723)]