28399761

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{80911}}^1$

素因数の和:80933

約数の個数: 16

約数和(自身を含む): 45310720

約数和(自身を除く): 16910959

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 80911, 242733, 728199, 1051843, 2184597, 3155529, 9466587, 28399761]

約数ペア:

[(1, 28399761), (3, 9466587), (9, 3155529), (13, 2184597), (27, 1051843), (39, 728199), (117, 242733), (351, 80911)]