20018416

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{1063}}^1$

素因数の和:1189

約数の個数: 40

約数和(自身を含む): 42747264

約数和(自身を除く): 22728848

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 107, 176, 214, 428, 856, 1063, 1177, 1712, 2126, 2354, 4252, 4708, 8504, 9416, 11693, 17008, 18832, 23386, 46772, 93544, 113741, 187088, 227482, 454964, 909928, 1251151, 1819856, 2502302, 5004604, 10009208, 20018416]

約数ペア:

[(1, 20018416), (2, 10009208), (4, 5004604), (8, 2502302), (11, 1819856), (16, 1251151), (22, 909928), (44, 454964), (88, 227482), (107, 187088), (176, 113741), (214, 93544), (428, 46772), (856, 23386), (1063, 18832), (1177, 17008), (1712, 11693), (2126, 9416), (2354, 8504), (4252, 4708)]