81191919

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{563}}^1\times {\mathrm{907}}^1$

素因数の和:1526

約数の個数: 16

約数和(自身を含む): 110616192

約数和(自身を除く): 29424273

約数列:

[1, 3, 53, 159, 563, 907, 1689, 2721, 29839, 48071, 89517, 144213, 510641, 1531923, 27063973, 81191919]

約数ペア:

[(1, 81191919), (3, 27063973), (53, 1531923), (159, 510641), (563, 144213), (907, 89517), (1689, 48071), (2721, 29839)]