18820976

素因数分解:

$2^4\times {\mathrm{397}}^1\times {\mathrm{2963}}^1$

素因数の和:3368

約数の個数: 20

約数和(自身を含む): 36569832

約数和(自身を除く): 17748856

約数列:

[1, 2, 4, 8, 16, 397, 794, 1588, 2963, 3176, 5926, 6352, 11852, 23704, 47408, 1176311, 2352622, 4705244, 9410488, 18820976]

約数ペア:

[(1, 18820976), (2, 9410488), (4, 4705244), (8, 2352622), (16, 1176311), (397, 47408), (794, 23704), (1588, 11852), (2963, 6352), (3176, 5926)]