21080416

素因数分解:

$2^5\times 7^1\times {\mathrm{94109}}^1$

素因数の和:94126

約数の個数: 24

約数和(自身を含む): 47431440

約数和(自身を除く): 26351024

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 94109, 188218, 376436, 658763, 752872, 1317526, 1505744, 2635052, 3011488, 5270104, 10540208, 21080416]

約数ペア:

[(1, 21080416), (2, 10540208), (4, 5270104), (7, 3011488), (8, 2635052), (14, 1505744), (16, 1317526), (28, 752872), (32, 658763), (56, 376436), (112, 188218), (224, 94109)]