19987768

素因数分解:

$2^3\times {\mathrm{103}}^1\times {\mathrm{127}}^1\times {\mathrm{191}}^1$

素因数の和:427

約数の個数: 32

約数和(自身を含む): 38338560

約数和(自身を除く): 18350792

約数列:

[1, 2, 4, 8, 103, 127, 191, 206, 254, 382, 412, 508, 764, 824, 1016, 1528, 13081, 19673, 24257, 26162, 39346, 48514, 52324, 78692, 97028, 104648, 157384, 194056, 2498471, 4996942, 9993884, 19987768]

約数ペア:

[(1, 19987768), (2, 9993884), (4, 4996942), (8, 2498471), (103, 194056), (127, 157384), (191, 104648), (206, 97028), (254, 78692), (382, 52324), (412, 48514), (508, 39346), (764, 26162), (824, 24257), (1016, 19673), (1528, 13081)]