21250616

素因数分解:

$2^3\times {\mathrm{397}}^1\times {\mathrm{6691}}^1$

素因数の和:7094

約数の個数: 16

約数和(自身を含む): 39951240

約数和(自身を除く): 18700624

約数列:

[1, 2, 4, 8, 397, 794, 1588, 3176, 6691, 13382, 26764, 53528, 2656327, 5312654, 10625308, 21250616]

約数ペア:

[(1, 21250616), (2, 10625308), (4, 5312654), (8, 2656327), (397, 53528), (794, 26764), (1588, 13382), (3176, 6691)]