212759199

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{81799}}^1$

素因数の和:81839

約数の個数: 18

約数和(自身を含む): 326463800

約数和(自身を除く): 113704601

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 81799, 245397, 736191, 1390583, 4171749, 12515247, 23639911, 70919733, 212759199]

約数ペア:

[(1, 212759199), (3, 70919733), (9, 23639911), (17, 12515247), (51, 4171749), (153, 1390583), (289, 736191), (867, 245397), (2601, 81799)]