28044219

素因数分解:

$3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{2687}}^1$

素因数の和:2775

約数の個数: 24

約数和(自身を含む): 44126208

約数和(自身を除く): 16081989

約数列:

[1, 3, 7, 21, 49, 71, 147, 213, 497, 1491, 2687, 3479, 8061, 10437, 18809, 56427, 131663, 190777, 394989, 572331, 1335439, 4006317, 9348073, 28044219]

約数ペア:

[(1, 28044219), (3, 9348073), (7, 4006317), (21, 1335439), (49, 572331), (71, 394989), (147, 190777), (213, 131663), (497, 56427), (1491, 18809), (2687, 10437), (3479, 8061)]