20404852

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{4409}}^1$

素因数の和:4515

約数の個数: 24

約数和(自身を含む): 38896200

約数和(自身を除く): 18491348

約数列:

[1, 2, 4, 13, 26, 52, 89, 178, 356, 1157, 2314, 4409, 4628, 8818, 17636, 57317, 114634, 229268, 392401, 784802, 1569604, 5101213, 10202426, 20404852]

約数ペア:

[(1, 20404852), (2, 10202426), (4, 5101213), (13, 1569604), (26, 784802), (52, 392401), (89, 229268), (178, 114634), (356, 57317), (1157, 17636), (2314, 8818), (4409, 4628)]