218943

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{53}}^1$

素因数の和:85

約数の個数: 24

約数和(自身を含む): 353808

約数和(自身を除く): 134865

約数列:

[1, 3, 9, 17, 27, 51, 53, 81, 153, 159, 243, 459, 477, 901, 1377, 1431, 2703, 4131, 4293, 8109, 12879, 24327, 72981, 218943]

約数ペア:

[(1, 218943), (3, 72981), (9, 24327), (17, 12879), (27, 8109), (51, 4293), (53, 4131), (81, 2703), (153, 1431), (159, 1377), (243, 901), (459, 477)]