81315741

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{269}}^1\times {\mathrm{337}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 122653440

約数和(自身を除く): 41337699

約数列:

[1, 3, 13, 23, 39, 69, 269, 299, 337, 807, 897, 1011, 3497, 4381, 6187, 7751, 10491, 13143, 18561, 23253, 80431, 90653, 100763, 241293, 271959, 302289, 1178489, 2085019, 3535467, 6255057, 27105247, 81315741]

約数ペア:

[(1, 81315741), (3, 27105247), (13, 6255057), (23, 3535467), (39, 2085019), (69, 1178489), (269, 302289), (299, 271959), (337, 241293), (807, 100763), (897, 90653), (1011, 80431), (3497, 23253), (4381, 18561), (6187, 13143), (7751, 10491)]