20198686

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{9739}}^1$

素因数の和:9819

約数の個数: 16

約数和(自身を含む): 32609520

約数和(自身を除く): 12410834

約数列:

[1, 2, 17, 34, 61, 122, 1037, 2074, 9739, 19478, 165563, 331126, 594079, 1188158, 10099343, 20198686]

約数ペア:

[(1, 20198686), (2, 10099343), (17, 1188158), (34, 594079), (61, 331126), (122, 165563), (1037, 19478), (2074, 9739)]