81917964

素因数分解:

$2^2\times 3^2\times {\mathrm{647}}^1\times {\mathrm{3517}}^1$

素因数の和:4174

約数の個数: 36

約数和(自身を含む): 207449424

約数和(自身を除く): 125531460

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 647, 1294, 1941, 2588, 3517, 3882, 5823, 7034, 7764, 10551, 11646, 14068, 21102, 23292, 31653, 42204, 63306, 126612, 2275499, 4550998, 6826497, 9101996, 13652994, 20479491, 27305988, 40958982, 81917964]

約数ペア:

[(1, 81917964), (2, 40958982), (3, 27305988), (4, 20479491), (6, 13652994), (9, 9101996), (12, 6826497), (18, 4550998), (36, 2275499), (647, 126612), (1294, 63306), (1941, 42204), (2588, 31653), (3517, 23292), (3882, 21102), (5823, 14068), (7034, 11646), (7764, 10551)]