18240147

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{3361}}^1$

素因数の和:3440

約数の個数: 20

約数和(自身を含む): 27662536

約数和(自身を除く): 9422389

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 3361, 5427, 10083, 30249, 90747, 225187, 272241, 675561, 2026683, 6080049, 18240147]

約数ペア:

[(1, 18240147), (3, 6080049), (9, 2026683), (27, 675561), (67, 272241), (81, 225187), (201, 90747), (603, 30249), (1809, 10083), (3361, 5427)]