18997048

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^2\times {\mathrm{353}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 42182640

約数和(自身を除く): 23185592

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 353, 434, 706, 868, 961, 1412, 1736, 1922, 2471, 2824, 3844, 4942, 6727, 7688, 9884, 10943, 13454, 19768, 21886, 26908, 43772, 53816, 76601, 87544, 153202, 306404, 339233, 612808, 678466, 1356932, 2374631, 2713864, 4749262, 9498524, 18997048]

約数ペア:

[(1, 18997048), (2, 9498524), (4, 4749262), (7, 2713864), (8, 2374631), (14, 1356932), (28, 678466), (31, 612808), (56, 339233), (62, 306404), (124, 153202), (217, 87544), (248, 76601), (353, 53816), (434, 43772), (706, 26908), (868, 21886), (961, 19768), (1412, 13454), (1736, 10943), (1922, 9884), (2471, 7688), (2824, 6727), (3844, 4942)]