20748208

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4337}}^1$

素因数の和:4381

約数の個数: 40

約数和(自身を含む): 45184608

約数和(自身を除く): 24436400

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 46, 52, 92, 104, 184, 208, 299, 368, 598, 1196, 2392, 4337, 4784, 8674, 17348, 34696, 56381, 69392, 99751, 112762, 199502, 225524, 399004, 451048, 798008, 902096, 1296763, 1596016, 2593526, 5187052, 10374104, 20748208]

約数ペア:

[(1, 20748208), (2, 10374104), (4, 5187052), (8, 2593526), (13, 1596016), (16, 1296763), (23, 902096), (26, 798008), (46, 451048), (52, 399004), (92, 225524), (104, 199502), (184, 112762), (208, 99751), (299, 69392), (368, 56381), (598, 34696), (1196, 17348), (2392, 8674), (4337, 4784)]