20218408

素因数分解:

$2^3\times 7^1\times {\mathrm{179}}^1\times {\mathrm{2017}}^1$

素因数の和:2209

約数の個数: 32

約数和(自身を含む): 43588800

約数和(自身を除く): 23370392

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 179, 358, 716, 1253, 1432, 2017, 2506, 4034, 5012, 8068, 10024, 14119, 16136, 28238, 56476, 112952, 361043, 722086, 1444172, 2527301, 2888344, 5054602, 10109204, 20218408]

約数ペア:

[(1, 20218408), (2, 10109204), (4, 5054602), (7, 2888344), (8, 2527301), (14, 1444172), (28, 722086), (56, 361043), (179, 112952), (358, 56476), (716, 28238), (1253, 16136), (1432, 14119), (2017, 10024), (2506, 8068), (4034, 5012)]