86979015

素因数分解:

$3^4\times 5^1\times {\mathrm{214763}}^1$

素因数の和:214780

約数の個数: 20

約数和(自身を含む): 155918664

約数和(自身を除く): 68939649

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 214763, 644289, 1073815, 1932867, 3221445, 5798601, 9664335, 17395803, 28993005, 86979015]

約数ペア:

[(1, 86979015), (3, 28993005), (5, 17395803), (9, 9664335), (15, 5798601), (27, 3221445), (45, 1932867), (81, 1073815), (135, 644289), (405, 214763)]