18931984

素因数分解:

$2^4\times {\mathrm{811}}^1\times {\mathrm{1459}}^1$

素因数の和:2278

約数の個数: 20

約数和(自身を含む): 36751120

約数和(自身を除く): 17819136

約数列:

[1, 2, 4, 8, 16, 811, 1459, 1622, 2918, 3244, 5836, 6488, 11672, 12976, 23344, 1183249, 2366498, 4732996, 9465992, 18931984]

約数ペア:

[(1, 18931984), (2, 9465992), (4, 4732996), (8, 2366498), (16, 1183249), (811, 23344), (1459, 12976), (1622, 11672), (2918, 6488), (3244, 5836)]