20997122404

素因数分解:

$2^2\times {\mathrm{439}}^1\times {\mathrm{2549}}^1\times {\mathrm{4691}}^1$

素因数の和:7683

約数の個数: 24

約数和(自身を含む): 36850968000

約数和(自身を除く): 15853845596

約数列:

[1, 2, 4, 439, 878, 1756, 2549, 4691, 5098, 9382, 10196, 18764, 1119011, 2059349, 2238022, 4118698, 4476044, 8237396, 11957359, 23914718, 47829436, 5249280601, 10498561202, 20997122404]

約数ペア:

[(1, 20997122404), (2, 10498561202), (4, 5249280601), (439, 47829436), (878, 23914718), (1756, 11957359), (2549, 8237396), (4691, 4476044), (5098, 4118698), (9382, 2238022), (10196, 2059349), (18764, 1119011)]