81147717

素因数分解:

$3^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{8101}}^1$

素因数の和:8170

約数の個数: 32

約数和(自身を含む): 140002560

約数和(自身を除く): 58854843

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 159, 189, 371, 477, 1113, 1431, 3339, 8101, 10017, 24303, 56707, 72909, 170121, 218727, 429353, 510363, 1288059, 1531089, 3005471, 3864177, 9016413, 11592531, 27049239, 81147717]

約数ペア:

[(1, 81147717), (3, 27049239), (7, 11592531), (9, 9016413), (21, 3864177), (27, 3005471), (53, 1531089), (63, 1288059), (159, 510363), (189, 429353), (371, 218727), (477, 170121), (1113, 72909), (1431, 56707), (3339, 24303), (8101, 10017)]