18418378509

素因数分解:

$3^4\times {\mathrm{193}}^1\times {\mathrm{1178173}}^1$

素因数の和:1178378

約数の個数: 20

約数和(自身を含む): 27656456476

約数和(自身を除く): 9238077967

約数列:

[1, 3, 9, 27, 81, 193, 579, 1737, 5211, 15633, 1178173, 3534519, 10603557, 31810671, 95432013, 227387389, 682162167, 2046486501, 6139459503, 18418378509]

約数ペア:

[(1, 18418378509), (3, 6139459503), (9, 2046486501), (27, 682162167), (81, 227387389), (193, 95432013), (579, 31810671), (1737, 10603557), (5211, 3534519), (15633, 1178173)]