19876878

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2161}}^1$

素因数の和:2249

約数の個数: 48

約数和(自身を含む): 49916256

約数和(自身を除く): 30039378

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 73, 126, 146, 219, 438, 511, 657, 1022, 1314, 1533, 2161, 3066, 4322, 4599, 6483, 9198, 12966, 15127, 19449, 30254, 38898, 45381, 90762, 136143, 157753, 272286, 315506, 473259, 946518, 1104271, 1419777, 2208542, 2839554, 3312813, 6625626, 9938439, 19876878]

約数ペア:

[(1, 19876878), (2, 9938439), (3, 6625626), (6, 3312813), (7, 2839554), (9, 2208542), (14, 1419777), (18, 1104271), (21, 946518), (42, 473259), (63, 315506), (73, 272286), (126, 157753), (146, 136143), (219, 90762), (438, 45381), (511, 38898), (657, 30254), (1022, 19449), (1314, 15127), (1533, 12966), (2161, 9198), (3066, 6483), (4322, 4599)]