21503816

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{57191}}^1$

素因数の和:57244

約数の個数: 16

約数和(自身を含む): 41178240

約数和(自身を除く): 19674424

約数列:

[1, 2, 4, 8, 47, 94, 188, 376, 57191, 114382, 228764, 457528, 2687977, 5375954, 10751908, 21503816]

約数ペア:

[(1, 21503816), (2, 10751908), (4, 5375954), (8, 2687977), (47, 457528), (94, 228764), (188, 114382), (376, 57191)]