217961199

素因数分解:

$3^4\times {\mathrm{17}}^2\times {\mathrm{9311}}^1$

素因数の和:9357

約数の個数: 30

約数和(自身を含む): 345912864

約数和(自身を除く): 127951665

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 289, 459, 867, 1377, 2601, 7803, 9311, 23409, 27933, 83799, 158287, 251397, 474861, 754191, 1424583, 2690879, 4273749, 8072637, 12821247, 24217911, 72653733, 217961199]

約数ペア:

[(1, 217961199), (3, 72653733), (9, 24217911), (17, 12821247), (27, 8072637), (51, 4273749), (81, 2690879), (153, 1424583), (289, 754191), (459, 474861), (867, 251397), (1377, 158287), (2601, 83799), (7803, 27933), (9311, 23409)]