81476847

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{18979}}^1$

素因数の和:19044

約数の個数: 20

約数和(自身を含む): 124015320

約数和(自身を除く): 42538473

約数列:

[1, 3, 9, 27, 53, 81, 159, 477, 1431, 4293, 18979, 56937, 170811, 512433, 1005887, 1537299, 3017661, 9052983, 27158949, 81476847]

約数ペア:

[(1, 81476847), (3, 27158949), (9, 9052983), (27, 3017661), (53, 1537299), (81, 1005887), (159, 512433), (477, 170811), (1431, 56937), (4293, 18979)]