20756168

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{63281}}^1$

素因数の和:63328

約数の個数: 16

約数和(自身を含む): 39867660

約数和(自身を除く): 19111492

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 63281, 126562, 253124, 506248, 2594521, 5189042, 10378084, 20756168]

約数ペア:

[(1, 20756168), (2, 10378084), (4, 5189042), (8, 2594521), (41, 506248), (82, 253124), (164, 126562), (328, 63281)]