18705872

素因数分解:

$2^4\times {\mathrm{421}}^1\times {\mathrm{2777}}^1$

素因数の和:3206

約数の個数: 20

約数和(自身を含む): 36341796

約数和(自身を除く): 17635924

約数列:

[1, 2, 4, 8, 16, 421, 842, 1684, 2777, 3368, 5554, 6736, 11108, 22216, 44432, 1169117, 2338234, 4676468, 9352936, 18705872]

約数ペア:

[(1, 18705872), (2, 9352936), (4, 4676468), (8, 2338234), (16, 1169117), (421, 44432), (842, 22216), (1684, 11108), (2777, 6736), (3368, 5554)]