21042566

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:488

約数の個数: 32

約数和(自身を含む): 35212320

約数和(自身を除く): 14169754

約数列:

[1, 2, 17, 34, 37, 43, 74, 86, 389, 629, 731, 778, 1258, 1462, 1591, 3182, 6613, 13226, 14393, 16727, 27047, 28786, 33454, 54094, 244681, 284359, 489362, 568718, 618899, 1237798, 10521283, 21042566]

約数ペア:

[(1, 21042566), (2, 10521283), (17, 1237798), (34, 618899), (37, 568718), (43, 489362), (74, 284359), (86, 244681), (389, 54094), (629, 33454), (731, 28786), (778, 27047), (1258, 16727), (1462, 14393), (1591, 13226), (3182, 6613)]