28876263

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{257}}^1$

素因数の和:383

約数の個数: 32

約数和(自身を含む): 43228416

約数和(自身を除く): 14352153

約数列:

[1, 3, 13, 39, 43, 67, 129, 201, 257, 559, 771, 871, 1677, 2613, 2881, 3341, 8643, 10023, 11051, 17219, 33153, 37453, 51657, 112359, 143663, 223847, 430989, 671541, 740417, 2221251, 9625421, 28876263]

約数ペア:

[(1, 28876263), (3, 9625421), (13, 2221251), (39, 740417), (43, 671541), (67, 430989), (129, 223847), (201, 143663), (257, 112359), (559, 51657), (771, 37453), (871, 33153), (1677, 17219), (2613, 11051), (2881, 10023), (3341, 8643)]