21096859

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{1249}}^1$

素因数の和:1402

約数の個数: 16

約数和(自身を含む): 25600000

約数和(自身を除く): 4503141

約数列:

[1, 7, 19, 127, 133, 889, 1249, 2413, 8743, 16891, 23731, 158623, 166117, 1110361, 3013837, 21096859]

約数ペア:

[(1, 21096859), (7, 3013837), (19, 1110361), (127, 166117), (133, 158623), (889, 23731), (1249, 16891), (2413, 8743)]