21443723

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{743}}^1$

素因数の和:807

約数の個数: 24

約数和(自身を含む): 27141120

約数和(自身を除く): 5697397

約数列:

[1, 7, 19, 31, 49, 133, 217, 589, 743, 931, 1519, 4123, 5201, 14117, 23033, 28861, 36407, 98819, 161231, 437627, 691733, 1128617, 3063389, 21443723]

約数ペア:

[(1, 21443723), (7, 3063389), (19, 1128617), (31, 691733), (49, 437627), (133, 161231), (217, 98819), (589, 36407), (743, 28861), (931, 23033), (1519, 14117), (4123, 5201)]