20986672

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8147}}^1$

素因数の和:8185

約数の個数: 40

約数和(自身を含む): 48496896

約数和(自身を除く): 27510224

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 92, 112, 161, 184, 322, 368, 644, 1288, 2576, 8147, 16294, 32588, 57029, 65176, 114058, 130352, 187381, 228116, 374762, 456232, 749524, 912464, 1311667, 1499048, 2623334, 2998096, 5246668, 10493336, 20986672]

約数ペア:

[(1, 20986672), (2, 10493336), (4, 5246668), (7, 2998096), (8, 2623334), (14, 1499048), (16, 1311667), (23, 912464), (28, 749524), (46, 456232), (56, 374762), (92, 228116), (112, 187381), (161, 130352), (184, 114058), (322, 65176), (368, 57029), (644, 32588), (1288, 16294), (2576, 8147)]