20647432012

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{4453717}}^1$

素因数の和:4453801

約数の個数: 24

約数和(自身を含む): 38658272240

約数和(自身を除く): 18010840228

約数列:

[1, 2, 4, 19, 38, 61, 76, 122, 244, 1159, 2318, 4636, 4453717, 8907434, 17814868, 84620623, 169241246, 271676737, 338482492, 543353474, 1086706948, 5161858003, 10323716006, 20647432012]

約数ペア:

[(1, 20647432012), (2, 10323716006), (4, 5161858003), (19, 1086706948), (38, 543353474), (61, 338482492), (76, 271676737), (122, 169241246), (244, 84620623), (1159, 17814868), (2318, 8907434), (4636, 4453717)]