17999793

素因数分解:

$3^3\times 7^1\times {\mathrm{131}}^1\times {\mathrm{727}}^1$

素因数の和:874

約数の個数: 32

約数和(自身を含む): 30750720

約数和(自身を除く): 12750927

約数列:

[1, 3, 7, 9, 21, 27, 63, 131, 189, 393, 727, 917, 1179, 2181, 2751, 3537, 5089, 6543, 8253, 15267, 19629, 24759, 45801, 95237, 137403, 285711, 666659, 857133, 1999977, 2571399, 5999931, 17999793]

約数ペア:

[(1, 17999793), (3, 5999931), (7, 2571399), (9, 1999977), (21, 857133), (27, 666659), (63, 285711), (131, 137403), (189, 95237), (393, 45801), (727, 24759), (917, 19629), (1179, 15267), (2181, 8253), (2751, 6543), (3537, 5089)]