13978881

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4721}}^1$

素因数の和:4781

約数の個数: 24

約数和(自身を含む): 23572224

約数和(自身を除く): 9593343

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 4721, 14163, 33047, 42489, 99141, 221887, 297423, 665661, 1553209, 1996983, 4659627, 13978881]

約数ペア:

[(1, 13978881), (3, 4659627), (7, 1996983), (9, 1553209), (21, 665661), (47, 297423), (63, 221887), (141, 99141), (329, 42489), (423, 33047), (987, 14163), (2961, 4721)]