28153089

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:251

約数の個数: 40

約数和(自身を含む): 44082720

約数和(自身を除く): 15929631

約数列:

[1, 3, 9, 27, 43, 59, 81, 129, 137, 177, 387, 411, 531, 1161, 1233, 1593, 2537, 3483, 3699, 4779, 5891, 7611, 8083, 11097, 17673, 22833, 24249, 53019, 68499, 72747, 159057, 205497, 218241, 347569, 477171, 654723, 1042707, 3128121, 9384363, 28153089]

約数ペア:

[(1, 28153089), (3, 9384363), (9, 3128121), (27, 1042707), (43, 654723), (59, 477171), (81, 347569), (129, 218241), (137, 205497), (177, 159057), (387, 72747), (411, 68499), (531, 53019), (1161, 24249), (1233, 22833), (1593, 17673), (2537, 11097), (3483, 8083), (3699, 7611), (4779, 5891)]