28289516

素因数分解:

$2^2\times {\mathrm{107}}^1\times {\mathrm{157}}^1\times {\mathrm{421}}^1$

素因数の和:689

約数の個数: 24

約数和(自身を含む): 50407056

約数和(自身を除く): 22117540

約数列:

[1, 2, 4, 107, 157, 214, 314, 421, 428, 628, 842, 1684, 16799, 33598, 45047, 66097, 67196, 90094, 132194, 180188, 264388, 7072379, 14144758, 28289516]

約数ペア:

[(1, 28289516), (2, 14144758), (4, 7072379), (107, 264388), (157, 180188), (214, 132194), (314, 90094), (421, 67196), (428, 66097), (628, 45047), (842, 33598), (1684, 16799)]