138639681

素因数分解:

$3^4\times {\mathrm{331}}^1\times {\mathrm{5171}}^1$

素因数の和:5514

約数の個数: 20

約数和(自身を含む): 207769584

約数和(自身を除く): 69129903

約数列:

[1, 3, 9, 27, 81, 331, 993, 2979, 5171, 8937, 15513, 26811, 46539, 139617, 418851, 1711601, 5134803, 15404409, 46213227, 138639681]

約数ペア:

[(1, 138639681), (3, 46213227), (9, 15404409), (27, 5134803), (81, 1711601), (331, 418851), (993, 139617), (2979, 46539), (5171, 26811), (8937, 15513)]