28228743

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{9419}}^1$

素因数の和:9468

約数の個数: 20

約数和(自身を含む): 43313160

約数和(自身を除く): 15084417

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 999, 2997, 9419, 28257, 84771, 254313, 348503, 762939, 1045509, 3136527, 9409581, 28228743]

約数ペア:

[(1, 28228743), (3, 9409581), (9, 3136527), (27, 1045509), (37, 762939), (81, 348503), (111, 254313), (333, 84771), (999, 28257), (2997, 9419)]