28178571

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 41532480

約数和(自身を除く): 13353909

約数列:

[1, 3, 17, 37, 51, 109, 111, 137, 327, 411, 629, 1853, 1887, 2329, 4033, 5069, 5559, 6987, 12099, 14933, 15207, 44799, 68561, 86173, 205683, 253861, 258519, 552521, 761583, 1657563, 9392857, 28178571]

約数ペア:

[(1, 28178571), (3, 9392857), (17, 1657563), (37, 761583), (51, 552521), (109, 258519), (111, 253861), (137, 205683), (327, 86173), (411, 68561), (629, 44799), (1853, 15207), (1887, 14933), (2329, 12099), (4033, 6987), (5069, 5559)]