81287316

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^2\times {\mathrm{18661}}^1$

素因数の和:18693

約数の個数: 54

約数和(自身を含む): 225866186

約数和(自身を除く): 144578870

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 121, 132, 198, 242, 363, 396, 484, 726, 1089, 1452, 2178, 4356, 18661, 37322, 55983, 74644, 111966, 167949, 205271, 223932, 335898, 410542, 615813, 671796, 821084, 1231626, 1847439, 2257981, 2463252, 3694878, 4515962, 6773943, 7389756, 9031924, 13547886, 20321829, 27095772, 40643658, 81287316]

約数ペア:

[(1, 81287316), (2, 40643658), (3, 27095772), (4, 20321829), (6, 13547886), (9, 9031924), (11, 7389756), (12, 6773943), (18, 4515962), (22, 3694878), (33, 2463252), (36, 2257981), (44, 1847439), (66, 1231626), (99, 821084), (121, 671796), (132, 615813), (198, 410542), (242, 335898), (363, 223932), (396, 205271), (484, 167949), (726, 111966), (1089, 74644), (1452, 55983), (2178, 37322), (4356, 18661)]