81851816

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{217691}}^1$

素因数の和:217744

約数の個数: 16

約数和(自身を含む): 156738240

約数和(自身を除く): 74886424

約数列:

[1, 2, 4, 8, 47, 94, 188, 376, 217691, 435382, 870764, 1741528, 10231477, 20462954, 40925908, 81851816]

約数ペア:

[(1, 81851816), (2, 40925908), (4, 20462954), (8, 10231477), (47, 1741528), (94, 870764), (188, 435382), (376, 217691)]