19382805

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1949}}^1$

素因数の和:1990

約数の個数: 48

約数和(自身を含む): 38329200

約数和(自身を除く): 18946395

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 195, 221, 255, 585, 663, 765, 1105, 1949, 1989, 3315, 5847, 9745, 9945, 17541, 25337, 29235, 33133, 76011, 87705, 99399, 126685, 165665, 228033, 298197, 380055, 430729, 496995, 1140165, 1292187, 1490985, 2153645, 3876561, 6460935, 19382805]

約数ペア:

[(1, 19382805), (3, 6460935), (5, 3876561), (9, 2153645), (13, 1490985), (15, 1292187), (17, 1140165), (39, 496995), (45, 430729), (51, 380055), (65, 298197), (85, 228033), (117, 165665), (153, 126685), (195, 99399), (221, 87705), (255, 76011), (585, 33133), (663, 29235), (765, 25337), (1105, 17541), (1949, 9945), (1989, 9745), (3315, 5847)]