85217751

素因数分解:

$3^4\times {\mathrm{431}}^1\times {\mathrm{2441}}^1$

素因数の和:2884

約数の個数: 20

約数和(自身を含む): 127648224

約数和(自身を除く): 42430473

約数列:

[1, 3, 9, 27, 81, 431, 1293, 2441, 3879, 7323, 11637, 21969, 34911, 65907, 197721, 1052071, 3156213, 9468639, 28405917, 85217751]

約数ペア:

[(1, 85217751), (3, 28405917), (9, 9468639), (27, 3156213), (81, 1052071), (431, 197721), (1293, 65907), (2441, 34911), (3879, 21969), (7323, 11637)]