28681227

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{11027}}^1$

素因数の和:11067

約数の個数: 18

約数和(自身を含む): 44012748

約数和(自身を除く): 15331521

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 11027, 33081, 99243, 187459, 562377, 1687131, 3186803, 9560409, 28681227]

約数ペア:

[(1, 28681227), (3, 9560409), (9, 3186803), (17, 1687131), (51, 562377), (153, 187459), (289, 99243), (867, 33081), (2601, 11027)]