1999291221

素因数分解:

$3^3\times {\mathrm{1559}}^1\times {\mathrm{47497}}^1$

素因数の和:49065

約数の個数: 16

約数和(自身を含む): 2963875200

約数和(自身を除く): 964583979

約数列:

[1, 3, 9, 27, 1559, 4677, 14031, 42093, 47497, 142491, 427473, 1282419, 74047823, 222143469, 666430407, 1999291221]

約数ペア:

[(1, 1999291221), (3, 666430407), (9, 222143469), (27, 74047823), (1559, 1282419), (4677, 427473), (14031, 142491), (42093, 47497)]