21168776

素因数分解:

$2^3\times {\mathrm{1103}}^1\times {\mathrm{2399}}^1$

素因数の和:3508

約数の個数: 16

約数和(自身を含む): 39744000

約数和(自身を除く): 18575224

約数列:

[1, 2, 4, 8, 1103, 2206, 2399, 4412, 4798, 8824, 9596, 19192, 2646097, 5292194, 10584388, 21168776]

約数ペア:

[(1, 21168776), (2, 10584388), (4, 5292194), (8, 2646097), (1103, 19192), (2206, 9596), (2399, 8824), (4412, 4798)]