19422891

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 31584384

約数和(自身を除く): 12161493

約数列:

[1, 3, 9, 17, 37, 47, 51, 73, 111, 141, 153, 219, 333, 423, 629, 657, 799, 1241, 1739, 1887, 2397, 2701, 3431, 3723, 5217, 5661, 7191, 8103, 10293, 11169, 15651, 24309, 29563, 30879, 45917, 58327, 88689, 126947, 137751, 174981, 266067, 380841, 413253, 524943, 1142523, 2158099, 6474297, 19422891]

約数ペア:

[(1, 19422891), (3, 6474297), (9, 2158099), (17, 1142523), (37, 524943), (47, 413253), (51, 380841), (73, 266067), (111, 174981), (141, 137751), (153, 126947), (219, 88689), (333, 58327), (423, 45917), (629, 30879), (657, 29563), (799, 24309), (1241, 15651), (1739, 11169), (1887, 10293), (2397, 8103), (2701, 7191), (3431, 5661), (3723, 5217)]