129599998

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{27919}}^1$

素因数の和:28143

約数の個数: 16

約数和(自身を含む): 213085440

約数和(自身を除く): 83485442

約数列:

[1, 2, 11, 22, 211, 422, 2321, 4642, 27919, 55838, 307109, 614218, 5890909, 11781818, 64799999, 129599998]

約数ペア:

[(1, 129599998), (2, 64799999), (11, 11781818), (22, 5890909), (211, 614218), (422, 307109), (2321, 55838), (4642, 27919)]