172978983

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{112397}}^1$

素因数の和:112428

約数の個数: 20

約数和(自身を含む): 272003160

約数和(自身を除く): 99024177

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 112397, 337191, 1011573, 2135543, 3034719, 6406629, 9104157, 19219887, 57659661, 172978983]

約数ペア:

[(1, 172978983), (3, 57659661), (9, 19219887), (19, 9104157), (27, 6406629), (57, 3034719), (81, 2135543), (171, 1011573), (513, 337191), (1539, 112397)]