8889993

素因数分解:

$3^4\times 7^1\times {\mathrm{15679}}^1$

素因数の和:15698

約数の個数: 20

約数和(自身を含む): 15178240

約数和(自身を除く): 6288247

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 15679, 47037, 109753, 141111, 329259, 423333, 987777, 1269999, 2963331, 8889993]

約数ペア:

[(1, 8889993), (3, 2963331), (7, 1269999), (9, 987777), (21, 423333), (27, 329259), (63, 141111), (81, 109753), (189, 47037), (567, 15679)]