19838907

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 33696000

約数和(自身を除く): 13857093

約数列:

[1, 3, 9, 11, 19, 33, 53, 57, 99, 159, 171, 199, 209, 477, 583, 597, 627, 1007, 1749, 1791, 1881, 2189, 3021, 3781, 5247, 6567, 9063, 10547, 11077, 11343, 19701, 31641, 33231, 34029, 41591, 94923, 99693, 116017, 124773, 200393, 348051, 374319, 601179, 1044153, 1803537, 2204323, 6612969, 19838907]

約数ペア:

[(1, 19838907), (3, 6612969), (9, 2204323), (11, 1803537), (19, 1044153), (33, 601179), (53, 374319), (57, 348051), (99, 200393), (159, 124773), (171, 116017), (199, 99693), (209, 94923), (477, 41591), (583, 34029), (597, 33231), (627, 31641), (1007, 19701), (1749, 11343), (1791, 11077), (1881, 10547), (2189, 9063), (3021, 6567), (3781, 5247)]