20397328

素因数分解:

$2^4\times 7^2\times {\mathrm{26017}}^1$

素因数の和:26039

約数の個数: 30

約数和(自身を含む): 45973806

約数和(自身を除く): 25576478

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 26017, 52034, 104068, 182119, 208136, 364238, 416272, 728476, 1274833, 1456952, 2549666, 2913904, 5099332, 10198664, 20397328]

約数ペア:

[(1, 20397328), (2, 10198664), (4, 5099332), (7, 2913904), (8, 2549666), (14, 1456952), (16, 1274833), (28, 728476), (49, 416272), (56, 364238), (98, 208136), (112, 182119), (196, 104068), (392, 52034), (784, 26017)]