18892185

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:218

約数の個数: 64

約数和(自身を含む): 35562240

約数和(自身を除く): 16670055

約数列:

[1, 3, 5, 13, 15, 17, 39, 41, 51, 65, 85, 123, 139, 195, 205, 221, 255, 417, 533, 615, 663, 695, 697, 1105, 1599, 1807, 2085, 2091, 2363, 2665, 3315, 3485, 5421, 5699, 7089, 7995, 9035, 9061, 10455, 11815, 17097, 27105, 27183, 28495, 30719, 35445, 45305, 74087, 85485, 92157, 96883, 135915, 153595, 222261, 290649, 370435, 460785, 484415, 1111305, 1259479, 1453245, 3778437, 6297395, 18892185]

約数ペア:

[(1, 18892185), (3, 6297395), (5, 3778437), (13, 1453245), (15, 1259479), (17, 1111305), (39, 484415), (41, 460785), (51, 370435), (65, 290649), (85, 222261), (123, 153595), (139, 135915), (195, 96883), (205, 92157), (221, 85485), (255, 74087), (417, 45305), (533, 35445), (615, 30719), (663, 28495), (695, 27183), (697, 27105), (1105, 17097), (1599, 11815), (1807, 10455), (2085, 9061), (2091, 9035), (2363, 7995), (2665, 7089), (3315, 5699), (3485, 5421)]