20707986

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:283

約数の個数: 64

約数和(自身を含む): 47779200

約数和(自身を除く): 27071214

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 57, 78, 89, 114, 157, 178, 247, 267, 314, 471, 494, 534, 741, 942, 1157, 1482, 1691, 2041, 2314, 2983, 3382, 3471, 4082, 5073, 5966, 6123, 6942, 8949, 10146, 12246, 13973, 17898, 21983, 27946, 38779, 41919, 43966, 65949, 77558, 83838, 116337, 131898, 181649, 232674, 265487, 363298, 530974, 544947, 796461, 1089894, 1592922, 3451331, 6902662, 10353993, 20707986]

約数ペア:

[(1, 20707986), (2, 10353993), (3, 6902662), (6, 3451331), (13, 1592922), (19, 1089894), (26, 796461), (38, 544947), (39, 530974), (57, 363298), (78, 265487), (89, 232674), (114, 181649), (157, 131898), (178, 116337), (247, 83838), (267, 77558), (314, 65949), (471, 43966), (494, 41919), (534, 38779), (741, 27946), (942, 21983), (1157, 17898), (1482, 13973), (1691, 12246), (2041, 10146), (2314, 8949), (2983, 6942), (3382, 6123), (3471, 5966), (4082, 5073)]