81232921

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{613}}^1\times {\mathrm{1721}}^1$

素因数の和:2352

約数の個数: 16

約数和(自身を含む): 101501568

約数和(自身を除く): 20268647

約数列:

[1, 7, 11, 77, 613, 1721, 4291, 6743, 12047, 18931, 47201, 132517, 1054973, 7384811, 11604703, 81232921]

約数ペア:

[(1, 81232921), (7, 11604703), (11, 7384811), (77, 1054973), (613, 132517), (1721, 47201), (4291, 18931), (6743, 12047)]