2911995

素因数分解:

$3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{397}}^1$

素因数の和:571

約数の個数: 24

約数和(自身を含む): 5091216

約数和(自身を除く): 2179221

約数列:

[1, 3, 5, 9, 15, 45, 163, 397, 489, 815, 1191, 1467, 1985, 2445, 3573, 5955, 7335, 17865, 64711, 194133, 323555, 582399, 970665, 2911995]

約数ペア:

[(1, 2911995), (3, 970665), (5, 582399), (9, 323555), (15, 194133), (45, 64711), (163, 17865), (397, 7335), (489, 5955), (815, 3573), (1191, 2445), (1467, 1985)]