19709145

素因数分解:

$3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2687}}^1$

素因数の和:2861

約数の個数: 24

約数和(自身を含む): 34384896

約数和(自身を除く): 14675751

約数列:

[1, 3, 5, 9, 15, 45, 163, 489, 815, 1467, 2445, 2687, 7335, 8061, 13435, 24183, 40305, 120915, 437981, 1313943, 2189905, 3941829, 6569715, 19709145]

約数ペア:

[(1, 19709145), (3, 6569715), (5, 3941829), (9, 2189905), (15, 1313943), (45, 437981), (163, 120915), (489, 40305), (815, 24183), (1467, 13435), (2445, 8061), (2687, 7335)]