20631404

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{2389}}^1$

素因数の和:2537

約数の個数: 24

約数和(自身を含む): 38545920

約数和(自身を除く): 17914516

約数列:

[1, 2, 4, 17, 34, 68, 127, 254, 508, 2159, 2389, 4318, 4778, 8636, 9556, 40613, 81226, 162452, 303403, 606806, 1213612, 5157851, 10315702, 20631404]

約数ペア:

[(1, 20631404), (2, 10315702), (4, 5157851), (17, 1213612), (34, 606806), (68, 303403), (127, 162452), (254, 81226), (508, 40613), (2159, 9556), (2389, 8636), (4318, 4778)]